Updated kvm packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel.

The kvm_emulate_hypercall() implementation was missing a check for the Current Privilege Level (CPL). A local, unprivileged user in a virtual machine could use this flaw to cause a local denial of service or escalate their privileges within that virtual machine. (CVE-2009-3290)

This update also fixes the following bugs :

* non-maskable interrupts (NMI) were not supported on systems with AMD processors. As a consequence, Windows Server 2008 R2 guests running with more than one virtual CPU assigned on systems with AMD processors would hang at the Windows shut down screen when a restart was attempted. This update adds support for NMI filtering on systems with AMD processors, allowing clean restarts of Windows Server 2008 R2 guests running with multiple virtual CPUs. (BZ#520694)

* significant performance issues for guests running 64-bit editions of Windows. This update improves performance for guests running 64-bit editions of Windows. (BZ#521793)

* Windows guests may have experienced time drift. (BZ#521794)

* removing the Red Hat VirtIO Ethernet Adapter from a guest running Windows Server 2008 R2 caused KVM to crash. With this update, device removal should not cause this issue. (BZ#524557)

All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the Solution section must be performed before this update takes effect.

Updated cyrus-imapd packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support.

Multiple buffer overflow flaws were found in the Cyrus IMAP Sieve implementation. An authenticated user able to create Sieve mail filtering rules could use these flaws to execute arbitrary code with the privileges of the Cyrus IMAP server user. (CVE-2009-2632, CVE-2009-3235)

Users of cyrus-imapd are advised to upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the update, cyrus-imapd will be restarted automatically.

Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

[Updated 23rd February 2010] This update adds references to two KBase articles that includes greater detail regarding some bug fixes that could not be fully documented in the errata note properly.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fix :

* a NULL pointer dereference flaw was found in the Multiple Devices (md) driver in the Linux kernel. If the 'suspend_lo' or 'suspend_hi' file on the sysfs file system ('/sys/') is modified when the disk array is inactive, it could lead to a local denial of service or privilege escalation. Note: By default, only the root user can write to the files noted above. (CVE-2009-2849, Moderate)

Bug fixes :

* a bug in nlm_lookup_host() could lead to un-reclaimed file system locks, resulting in umount failing & NFS service relocation issues for clusters. (BZ#517967)

* a bug in the sky2 driver prevented the phy from being reset properly on some hardware when it hung, preventing a link from coming back up.
(BZ#517976)

* disabling MSI-X for qla2xxx also disabled MSI interrupts.
(BZ#519782)

* performance issues with reads when using the qlge driver on PowerPC systems. A system hang could also occur during reboot. (BZ#519783)

* unreliable time keeping for Red Hat Enterprise Linux virtual machines. The KVM pvclock code is now used to detect/correct lost ticks. (BZ#520685)

* /proc/cpuinfo was missing flags for new features in supported processors, possibly preventing the operating system & applications from getting the best performance. (BZ#520686)

* reading/writing with a serial loopback device on a certain IBM system did not work unless booted with 'pnpacpi=off'. (BZ#520905)

* mlx4_core failed to load on systems with more than 32 CPUs.
(BZ#520906)

* on big-endian platforms, interfaces using the mlx4_en driver & Large Receive Offload (LRO) did not handle VLAN traffic properly (a segmentation fault in the VLAN stack in the kernel occurred).
(BZ#520908)

* due to a lock being held for a long time, some systems may have experienced 'BUG: soft lockup' messages under heavy load. (BZ#520919)

* incorrect APIC timer calibration may have caused a system hang during boot, as well as the system time becoming faster or slower. A warning is now provided. (BZ#521238)

* a Fibre Channel device re-scan via 'echo '---' > /sys/class/scsi_host/ host[x]/scan' may not complete after hot adding a drive, leading to soft lockups ('BUG: soft lockup detected').
(BZ#521239)

* the Broadcom BCM5761 network device could not to be initialized properly; therefore, the associated interface could not obtain an IP address via DHCP or be assigned one manually. (BZ#521241)

* when a process attempted to read from a page that had first been accessed by writing to part of it (via write(2)), the NFS client needed to flush the modified portion of the page out to the server, & then read the entire page back in. This flush caused performance issues. (BZ#521244)

* a kernel panic when using bnx2x devices & LRO in a bridge. A warning is now provided to disable LRO in these situations. (BZ#522636)

* the scsi_dh_rdac driver was updated to recognize the Sun StorageTek Flexline 380. (BZ#523237)

* in FIPS mode, random number generators are required to not return the first block of random data they generate, but rather save it to seed the repetition check. This update brings the random number generator into conformance. (BZ#523289)

* an option to disable/enable the use of the first random block is now provided to bring ansi_cprng into compliance with FIPS-140 continuous test requirements. (BZ#523290)

* running the SAP Linux Certification Suite in a KVM guest caused severe SAP kernel errors, causing it to exit. (BZ#524150)

* attempting to 'online' a CPU for a KVM guest via sysfs caused a system crash. (BZ#524151)

* when using KVM, pvclock returned bogus wallclock values. (BZ#524152)

* the clock could go backwards when using the vsyscall infrastructure.
(BZ#524527)

See References for KBase links re BZ#519782 & BZ#520906.

Users should upgrade to these updated packages, which contain backported patches to correct these issues. Reboot the system for this update to take effect.

Updated pidgin packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously.
Info/Query (IQ) is an Extensible Messaging and Presence Protocol (XMPP) specific request-response mechanism.

A NULL pointer dereference flaw was found in the way the Pidgin XMPP protocol plug-in processes IQ error responses when trying to fetch a custom smiley. A remote client could send a specially crafted IQ error response that would crash Pidgin. (CVE-2009-3085)

A NULL pointer dereference flaw was found in the way the Pidgin IRC protocol plug-in handles IRC topics. A malicious IRC server could send a specially crafted IRC TOPIC message, which once received by Pidgin, would lead to a denial of service (Pidgin crash). (CVE-2009-2703)

It was discovered that, when connecting to certain, very old Jabber servers via XMPP, Pidgin may ignore the 'Require SSL/TLS' setting. In these situations, a non-encrypted connection is established rather than the connection failing, causing the user to believe they are using an encrypted connection when they are not, leading to sensitive information disclosure (session sniffing). (CVE-2009-3026)

A NULL pointer dereference flaw was found in the way the Pidgin MSN protocol plug-in handles improper MSNSLP invitations. A remote attacker could send a specially crafted MSNSLP invitation request, which once accepted by a valid Pidgin user, would lead to a denial of service (Pidgin crash). (CVE-2009-3083)

These packages upgrade Pidgin to version 2.6.2. Refer to the Pidgin release notes for a full list of changes:
http://developer.pidgin.im/wiki/ChangeLog

All Pidgin users should upgrade to these updated packages, which correct these issues. Pidgin must be restarted for this update to take effect.

Updated neon packages that fix two security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

neon is an HTTP and WebDAV client library, with a C interface. It provides a high-level interface to HTTP and WebDAV methods along with a low-level interface for HTTP request handling. neon supports persistent connections, proxy servers, basic, digest and Kerberos authentication, and has complete SSL support.

It was discovered that neon is affected by the previously published 'null prefix attack', caused by incorrect handling of NULL characters in X.509 certificates. If an attacker is able to get a carefully-crafted certificate signed by a trusted Certificate Authority, the attacker could use the certificate during a man-in-the-middle attack and potentially confuse an application using the neon library into accepting it by mistake. (CVE-2009-2474)

A denial of service flaw was found in the neon Extensible Markup Language (XML) parser. A remote attacker (malicious DAV server) could provide a specially crafted XML document that would cause excessive memory and CPU consumption if an application using the neon XML parser was tricked into processing it. (CVE-2009-2473)

All neon users should upgrade to these updated packages, which contain backported patches to correct these issues. Applications using the neon HTTP and WebDAV client library, such as cadaver, must be restarted for this update to take effect.

Updated freeradius packages that fix a security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

FreeRADIUS is a high-performance and highly configurable free Remote Authentication Dial In User Service (RADIUS) server, designed to allow centralized authentication and authorization for a network.

An input validation flaw was discovered in the way FreeRADIUS decoded specific RADIUS attributes from RADIUS packets. A remote attacker could use this flaw to crash the RADIUS daemon (radiusd) via a specially crafted RADIUS packet. (CVE-2009-3111)

Users of FreeRADIUS are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, radiusd will be restarted automatically.

Updated kernel packages that fix several security issues and several bugs are now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags were not cleared when a setuid or setgid program was executed. A local, unprivileged user could use this flaw to bypass the mmap_min_addr protection mechanism and perform a NULL pointer dereference attack, or bypass the Address Space Layout Randomization (ASLR) security feature.
(CVE-2009-1895, Important)

* it was discovered that, when executing a new process, the clear_child_tid pointer in the Linux kernel is not cleared. If this pointer points to a writable portion of the memory of the new program, the kernel could corrupt four bytes of memory, possibly leading to a local denial of service or privilege escalation. (CVE-2009-2848, Important)

* Solar Designer reported a missing capability check in the z90crypt driver in the Linux kernel. This missing check could allow a local user with an effective user ID (euid) of 0 to bypass intended capability restrictions. (CVE-2009-1883, Moderate)

* a flaw was found in the way the do_sigaltstack() function in the Linux kernel copies the stack_t structure to user-space. On 64-bit machines, this flaw could lead to a four-byte information leak.
(CVE-2009-2847, Moderate)

This update also fixes the following bugs :

* the gcc flag '-fno-delete-null-pointer-checks' was added to the kernel build options. This prevents gcc from optimizing out NULL pointer checks after the first use of a pointer. NULL pointer bugs are often exploited by attackers. Keeping these checks is a safety measure. (BZ#517964)

* the Emulex LPFC driver has been updated to version 8.0.16.47, which fixes a memory leak that caused memory allocation failures and system hangs. (BZ#513192)

* an error in the MPT Fusion driver makefile caused CSMI ioctls to not work with Serial Attached SCSI devices. (BZ#516184)

* this update adds the mmap_min_addr tunable and restriction checks to help prevent unprivileged users from creating new memory mappings below the minimum address. This can help prevent the exploitation of NULL pointer deference bugs. Note that mmap_min_addr is set to zero (disabled) by default for backwards compatibility. (BZ#517904)

* time-outs resulted in I/O errors being logged to '/var/log/messages' when running 'mt erase' on tape drives using certain LSI MegaRAID SAS adapters, preventing the command from completing. The megaraid_sas driver's timeout value is now set to the OS layer value. (BZ#517965)

* a locking issue caused the qla2xxx ioctl module to hang after encountering errors. This locking issue has been corrected. This ioctl module is used by the QLogic SAN management tools, such as SANsurfer and scli. (BZ#519428)

* when a RAID 1 array that uses the mptscsi driver and the LSI 1030 controller became degraded, the whole array was detected as being offline, which could cause kernel panics at boot or data loss.
(BZ#517295)

* on 32-bit architectures, if a file was held open and frequently written for more than 25 days, it was possible that the kernel would stop flushing those writes to storage. (BZ#515255)

* a memory allocation bug in ib_mthca prevented the driver from loading if it was loaded with large values for the 'num_mpt=' and 'num_mtt=' options. (BZ#518707)

* with this update, get_random_int() is more random and no longer uses a common seed value, reducing the possibility of predicting the values returned. (BZ#519692)

* a bug in __ptrace_unlink() caused it to create deadlocked and unkillable processes. (BZ#519446)

* previously, multiple threads using the fcntl() F_SETLK command to synchronize file access caused a deadlock in posix_locks_deadlock().
This could cause a system hang. (BZ#519429)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Updated gdm packages that fix a security issue and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The GNOME Display Manager (GDM) is a configurable re-implementation of XDM, the X Display Manager. GDM allows you to log in to your system with the X Window System running, and supports running several different X sessions on your local machine at the same time.

A flaw was found in the way the gdm package was built. The gdm package was missing TCP wrappers support, which could result in an administrator believing they had access restrictions enabled when they did not. (CVE-2009-2697)

This update also fixes the following bugs :

* the GDM Reference Manual is now included with the gdm packages. The gdm-docs package installs this document in HTML format in '/usr/share/doc/'. (BZ#196054)

* GDM appeared in English on systems using Telugu (te_IN). With this update, GDM has been localized in te_IN. (BZ#226931)

* the Ctrl+Alt+Backspace sequence resets the X server when in runlevel 5. In previous releases, however, repeated use of this sequence prevented GDM from starting the X server as part of the reset process.
This was because GDM sometimes did not notice the X server shutdown properly and would subsequently fail to complete the reset process.
This update contains an added check to explicitly notify GDM whenever the X server is terminated, ensuring that resets are executed reliably. (BZ#441971)

* the 'gdm' user is now part of the 'audio' group by default. This enables audio support at the login screen. (BZ#458331)

* the gui/modules/dwellmouselistener.c source code contained incorrect XInput code that prevented tablet devices from working properly. This update removes the errant code, ensuring that tablet devices work as expected. (BZ#473262)

* a bug in the XOpenDevice() function prevented the X server from starting whenever a device defined in '/etc/X11/xorg.conf' was not actually plugged in. This update wraps XOpenDevice() in the gdk_error_trap_pop() and gdk_error_trap_push() functions, which resolves this bug. This ensures that the X server can start properly even when devices defined in '/etc/X11/xorg.conf' are not plugged in.
(BZ#474588)

All users should upgrade to these updated packages, which resolve these issues. GDM must be restarted for this update to take effect.
Rebooting achieves this, but changing the runlevel from 5 to 3 and back to 5 also restarts GDM.

Updated cman packages that fix several security issues, various bugs, and add enhancements are now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The Cluster Manager (cman) utility provides services for managing a Linux cluster.

Multiple insecure temporary file use flaws were found in fence_apc_snmp and ccs_tool. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-4579, CVE-2008-6552)

Bug fixes :

* a buffer could overflow if cluster.conf had more than 52 entries per block inside the <cman> block. The limit is now 1024.

* the output of the group_tool dump subcommands were NULL padded.

* using device='' instead of label='' no longer causes qdiskd to incorrectly exit.

* the IPMI fencing agent has been modified to time out after 10 seconds. It is also now possible to specify a different timeout value with the '-t' option.

* the IPMI fencing agent now allows punctuation in passwords.

* quickly starting and stopping the cman service no longer causes the cluster membership to become inconsistent across the cluster.

* an issue with lock syncing caused 'receive_own from' errors to be logged to '/var/log/messages'.

* an issue which caused gfs_controld to segfault when mounting hundreds of file systems has been fixed.

* the LPAR fencing agent now properly reports status when an LPAR is in Open Firmware mode.

* the LPAR fencing agent now works properly with systems using the Integrated Virtualization Manager (IVM).

* the APC SNMP fencing agent now properly recognizes outletStatusOn and outletStatusOff return codes from the SNMP agent.

* the WTI fencing agent can now connect to fencing devices with no password.

* the rps-10 fencing agent now properly performs a reboot when run with no options.

* the IPMI fencing agent now supports different cipher types with the '-C' option.

* qdisk now properly scans devices and partitions.

* cman now checks to see if a new node has state to prevent killing the first node during cluster setup.

* 'service qdiskd start' now works properly.

* the McData fence agent now works properly with the McData Sphereon 4500 Fabric Switch.

* the Egenera fence agent can now specify an SSH login name.

* the APC fence agent now works with non-admin accounts when using the 3.5.x firmware.

* fence_xvmd now tries two methods to reboot a virtual machine.

* connections to OpenAIS are now allowed from unprivileged CPG clients with the user and group of 'ais'.

* groupd no longer allows the default fence domain to be '0', which previously caused rgmanager to hang. Now, rgmanager no longer hangs.

* the RSA fence agent now supports SSH enabled RSA II devices.

* the DRAC fence agent now works with the Integrated Dell Remote Access Controller (iDRAC) on Dell PowerEdge M600 blade servers.

* fixed a memory leak in cman.

* qdisk now displays a warning if more than one label is found with the same name.

* the DRAC5 fencing agent now shows proper usage instructions for the '-D' option.

* cman no longer uses the wrong node name when getnameinfo() fails.

* the SCSI fence agent now verifies that sg_persist is installed.

* the DRAC5 fencing agent now properly handles modulename.

* QDisk now logs warning messages if it appears its I/O to shared storage is hung.

* fence_apc no longer fails with a pexpect exception.

* removing a node from the cluster using 'cman_tool leave remove' now properly reduces the expected_votes and quorum.

* a semaphore leak in cman has been fixed.

* 'cman_tool nodes -F name' no longer segfaults when a node is out of membership.

Enhancements :

* support for: ePowerSwitch 8+ and LPAR/HMC v3 devices, Cisco MDS 9124 and MDS 9134 SAN switches, the virsh fencing agent, and broadcast communication with cman.

* fence_scsi limitations added to fence_scsi man page.

Users of cman are advised to upgrade to these updated packages, which resolve these issues and add these enhancements.

An updated rgmanager package that fixes multiple security issues, various bugs, and adds enhancements is now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The rgmanager package contains the Red Hat Resource Group Manager, which provides high availability for critical server applications in the event of system downtime.

Multiple insecure temporary file use flaws were discovered in rgmanager and various resource scripts run by rgmanager. A local attacker could use these flaws to overwrite an arbitrary file writable by the rgmanager process (i.e. user root) with the output of rgmanager or a resource agent via a symbolic link attack. (CVE-2008-6552)

This update also fixes the following bugs :

* clulog now accepts '-' as the first character in messages.

* if expire_time is 0, max_restarts is no longer ignored.

* the SAP resource agents included in the rgmanager package shipped with Red Hat Enterprise Linux 5.3 were outdated. This update includes the most recent SAP resource agents and, consequently, improves SAP failover support.

* empty PID files no longer cause resource start failures.

* recovery policy of type 'restart' now works properly when using a resource based on ra-skelet.sh.

* samba.sh has been updated to kill the PID listed in the proper PID file.

* handling of the '-F' option has been improved to fix issues causing rgmanager to crash if no members of a restricted failover domain were online.

* the number of simultaneous status checks can now be limited to prevent load spikes.

* forking and cloning during status checks has been optimized to reduce load spikes.

* rg_test no longer hangs when run with large cluster configuration files.

* when rgmanager is used with a restricted failover domain it will no longer occasionally segfault when some nodes are offline during a failover event.

* virtual machine guests no longer restart after a cluster.conf update.

* nfsclient.sh no longer leaves temporary files after running.

* extra checks from the Oracle agents have been removed.

* vm.sh now uses libvirt.

* users can now define an explicit service processing order when central_processing is enabled.

* virtual machine guests can no longer start on 2 nodes at the same time.

* in some cases a successfully migrated virtual machine guest could restart when the cluster.conf file was updated.

* incorrect reporting of a service being started when it was not started has been addressed.

As well, this update adds the following enhancements :

* a startup_wait option has been added to the MySQL resource agent.

* services can now be prioritized.

* rgmanager now checks to see if it has been killed by the OOM killer and if so, reboots the node.

Users of rgmanager are advised to upgrade to this updated package, which resolves these issues and adds these enhancements.

An updated gfs2-utils package that fixes multiple security issues and various bugs is now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The gfs2-utils package provides the user-space tools necessary to mount, create, maintain, and test GFS2 file systems.

Multiple insecure temporary file use flaws were discovered in GFS2 user level utilities. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-6552)

This update also fixes the following bugs :

* gfs2_fsck now properly detects and repairs problems with sequence numbers on GFS2 file systems.

* GFS2 user utilities now use the file system UUID.

* gfs2_grow now properly updates the file system size during operation.

* gfs2_fsck now returns the proper exit codes.

* gfs2_convert now properly frees blocks when removing free blocks up to height 2.

* the gfs2_fsck manual page has been renamed to fsck.gfs2 to match current standards.

* the 'gfs2_tool df' command now provides human-readable output.

* mounting GFS2 file systems with the noatime or noquota option now works properly.

* new capabilities have been added to the gfs2_edit tool to help in testing and debugging GFS and GFS2 issues.

* the 'gfs2_tool df' command no longer segfaults on file systems with a block size other than 4k.

* the gfs2_grow manual page no longer references the '-r' option, which has been removed.

* the 'gfs2_tool unfreeze' command no longer hangs during use.

* gfs2_convert no longer corrupts file systems when converting from GFS to GFS2.

* gfs2_fsck no longer segfaults when encountering a block which is listed as both a data and stuffed directory inode.

* gfs2_fsck can now fix file systems even if the journal is already locked for use.

* a GFS2 file system's metadata is now properly copied with 'gfs2_edit savemeta' and 'gfs2_edit restoremeta'.

* the gfs2_edit savemeta function now properly saves blocks of type 2.

* 'gfs2_convert -vy' now works properly on the PowerPC architecture.

* when mounting a GFS2 file system as '/', mount_gfs2 no longer fails after being unable to find the file system in '/proc/mounts'.

* gfs2_fsck no longer segfaults when fixing 'EA leaf block type' problems.

All gfs2-utils users should upgrade to this updated package, which resolves these issues.

Updated openssl packages that fix several security issues, various bugs, and add enhancements are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength general purpose cryptography library. Datagram TLS (DTLS) is a protocol based on TLS that is capable of securing datagram transport (for example, UDP).

Multiple denial of service flaws were discovered in OpenSSL's DTLS implementation. A remote attacker could use these flaws to cause a DTLS server to use excessive amounts of memory, or crash on an invalid memory access or NULL pointer dereference. (CVE-2009-1377, CVE-2009-1378, CVE-2009-1379, CVE-2009-1386, CVE-2009-1387)

Note: These flaws only affect applications that use DTLS. Red Hat does not ship any DTLS client or server applications in Red Hat Enterprise Linux.

An input validation flaw was found in the handling of the BMPString and UniversalString ASN1 string types in OpenSSL's ASN1_STRING_print_ex() function. An attacker could use this flaw to create a specially crafted X.509 certificate that could cause applications using the affected function to crash when printing certificate contents. (CVE-2009-0590)

Note: The affected function is rarely used. No application shipped with Red Hat Enterprise Linux calls this function, for example.

These updated packages also fix the following bugs :

* 'openssl smime -verify -in' verifies the signature of the input file and the '-verify' switch expects a signed or encrypted input file.
Previously, running openssl on an S/MIME file that was not encrypted or signed caused openssl to segfault. With this update, the input file is now checked for a signature or encryption. Consequently, openssl now returns an error and quits when attempting to verify an unencrypted or unsigned S/MIME file. (BZ#472440)

* when generating RSA keys, pairwise tests were called even in non-FIPS mode. This prevented small keys from being generated. With this update, generating keys in non-FIPS mode no longer calls the pairwise tests and keys as small as 32-bits can be generated in this mode. Note: In FIPS mode, pairwise tests are still called and keys generated in this mode must still be 1024-bits or larger. (BZ#479817)

As well, these updated packages add the following enhancements :

* both the libcrypto and libssl shared libraries, which are part of the OpenSSL FIPS module, are now checked for integrity on initialization of FIPS mode. (BZ#475798)

* an issuing Certificate Authority (CA) allows multiple certificate templates to inherit the CA's Common Name (CN). Because this CN is used as a unique identifier, each template had to have its own Certificate Revocation List (CRL). With this update, multiple CRLs with the same subject name can now be stored in a X509_STORE structure, with their signature field being used to distinguish between them. (BZ#457134)

* the fipscheck library is no longer needed for rebuilding the openssl source RPM. (BZ#475798)

OpenSSL users should upgrade to these updated packages, which resolve these issues and add these enhancements.

An updated nfs-utils package that fixes a security issue and several bugs is now available.

This update has been rated as having low security impact by the Red Hat Security Response Team.

The nfs-utils package provides a daemon for the kernel NFS server and related tools.

It was discovered that nfs-utils did not use tcp_wrappers correctly.
Certain hosts access rules defined in '/etc/hosts.allow' and '/etc/hosts.deny' may not have been honored, possibly allowing remote attackers to bypass intended access restrictions. (CVE-2008-4552)

This updated package also fixes the following bugs :

* the 'LOCKD_TCPPORT' and 'LOCKD_UDPPORT' options in '/etc/sysconfig/nfs' were not honored: the lockd daemon continued to use random ports. With this update, these options are honored.
(BZ#434795)

* it was not possible to mount NFS file systems from a system that has the '/etc/' directory mounted on a read-only file system (this could occur on systems with an NFS-mounted root file system). With this update, it is possible to mount NFS file systems from a system that has '/etc/' mounted on a read-only file system. (BZ#450646)

* arguments specified by 'STATDARG=' in '/etc/sysconfig/nfs' were removed by the nfslock init script, meaning the arguments specified were never passed to rpc.statd. With this update, the nfslock init script no longer removes these arguments. (BZ#459591)

* when mounting an NFS file system from a host not specified in the NFS server's '/etc/exports' file, a misleading 'unknown host' error was logged on the server (the hostname lookup did not fail). With this update, a clearer error message is provided for these situations.
(BZ#463578)

* the nhfsstone benchmark utility did not work with NFS version 3 and 4. This update adds support to nhfsstone for NFS version 3 and 4. The new nhfsstone '-2', '-3', and '-4' options are used to select an NFS version (similar to nfsstat(8)). (BZ#465933)

* the exportfs(8) manual page contained a spelling mistake, 'djando', in the EXAMPLES section. (BZ#474848)

* in some situations the NFS server incorrectly refused mounts to hosts that had a host alias in a NIS netgroup. (BZ#478952)

* in some situations the NFS client used its cache, rather than using the latest version of a file or directory from a given export. This update adds a new mount option, 'lookupcache=', which allows the NFS client to control how it caches files and directories. Note: The Red Hat Enterprise Linux 5.4 kernel update (the fourth regular update) must be installed in order to use the 'lookupcache=' option. Also, 'lookupcache=' is currently only available for NFS version 3. Support for NFS version 4 may be introduced in future Red Hat Enterprise Linux 5 updates. Refer to Red Hat Bugzilla #511312 for further information.
(BZ#489335)

Users of nfs-utils should upgrade to this updated package, which contains backported patches to correct these issues. After installing this update, the nfs service will be restarted automatically.

Updated ecryptfs-utils packages that fix a security issue, various bugs, and add enhancements are now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

eCryptfs is a stacked, cryptographic file system. It is transparent to the underlying file system and provides per-file granularity.

eCryptfs is released as a Technology Preview for Red Hat Enterprise Linux 5.4. These updated ecryptfs-utils packages have been upgraded to upstream version 75, which provides a number of bug fixes and enhancements over the previous version. In addition, these packages provide a graphical program to help configure and use eCryptfs. To start this program, run the command :

ecryptfs-mount-helper-gui

Important: the syntax of certain eCryptfs mount options has changed.
Users who were previously using the initial Technology Preview release of ecryptfs-utils are advised to refer to the ecryptfs(7) man page, and to update any affected mount scripts and /etc/fstab entries for eCryptfs file systems.

A disclosure flaw was found in the way the 'ecryptfs-setup-private' script passed passphrases to the 'ecryptfs-wrap-passphrase' and 'ecryptfs-add-passphrase' commands as command line arguments. A local user could obtain the passphrases of other users who were running the script from the process listing. (CVE-2008-5188)

These updated packages provide various enhancements, including a mount helper and supporting libraries to perform key management and mounting functions.

Notable enhancements include :

* a new package, ecryptfs-utils-gui, has been added to this update.
This package depends on the pygtk2 and pygtk2-libglade packages and provides the eCryptfs Mount Helper GUI program. To install the GUI, first install ecryptfs-utils and then issue the following command :

yum install ecryptfs-utils-gui

(BZ#500997)

* the 'ecryptfs-rewrite-file' utility is now more intelligent when dealing with non-existent files and with filtering special files such as the '.' directory. In addition, the progress output from 'ecryptfs-rewrite-file' has been improved and is now more explicit about the success status of each target. (BZ#500813)

* descriptions of the 'verbose' flag and the 'verbosity=[x]' option, where [x] is either 0 or 1, were missing from a number of eCryptfs manual pages, and have been added. Refer to the eCryptfs man pages for important information regarding using the verbose and/or verbosity options. (BZ#470444)

These updated packages also fix the following bugs :

* mounting a directory using the eCryptfs mount helper with an RSA key that was too small did not allow the eCryptfs mount helper to encrypt the entire key. When this situation occurred, the mount helper did not display an error message alerting the user to the fact that the key size was too small, possibly leading to corrupted files. The eCryptfs mount helper now refuses RSA keys which are to small to encrypt the eCryptfs key. (BZ#499175)

* when standard input was redirected from /dev/null or was unavailable, attempting to mount a directory with the eCryptfs mount helper caused it to become unresponsive and eventually crash, or an 'invalid value' error message, depending on if the '--verbosity=[value]' option was provided as an argument, and, if so, its value. With these updated packages, attempting to mount a directory using 'mount.ecryptfs' under the same conditions results in either the mount helper attempting to use default values (if 'verbosity=0' is supplied), or an 'invalid value' error message (instead of the mount helper hanging) if standard input is redirected and '--verbosity=1' is supplied, or that option is omitted entirely.
(BZ#499367)

* attempting to use the eCryptfs mount helper with an OpenSSL key when the keyring did not contain enough space for the key resulted in an unhelpful error message. The user is now alerted when this situation occurs. (BZ#501460)

* the eCryptfs mount helper no longer fails upon receiving an incorrect or empty answer to 'yes/no' questions. (BZ#466210)

Users are advised to upgrade to these updated ecryptfs-utils packages, which resolve these issues and add these enhancements.

Updated mysql packages that fix various security issues and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.

MySQL did not correctly check directories used as arguments for the DATA DIRECTORY and INDEX DIRECTORY directives. Using this flaw, an authenticated attacker could elevate their access privileges to tables created by other database users. Note: This attack does not work on existing tables. An attacker can only elevate their access to another user's tables as the tables are created. As well, the names of these created tables need to be predicted correctly for this attack to succeed. (CVE-2008-2079)

A flaw was found in the way MySQL handles an empty bit-string literal.
A remote, authenticated attacker could crash the MySQL server daemon (mysqld) if they used an empty bit-string literal in a SQL statement.
This issue only caused a temporary denial of service, as the MySQL daemon was automatically restarted after the crash. (CVE-2008-3963)

An insufficient HTML entities quoting flaw was found in the mysql command line client's HTML output mode. If an attacker was able to inject arbitrary HTML tags into data stored in a MySQL database, which was later retrieved using the mysql command line client and its HTML output mode, they could perform a cross-site scripting (XSS) attack against victims viewing the HTML output in a web browser.
(CVE-2008-4456)

Multiple format string flaws were found in the way the MySQL server logs user commands when creating and deleting databases. A remote, authenticated attacker with permissions to CREATE and DROP databases could use these flaws to formulate a specifically-crafted SQL command that would cause a temporary denial of service (open connections to mysqld are terminated). (CVE-2009-2446)

Note: To exploit the CVE-2009-2446 flaws, the general query log (the mysqld '--log' command line option or the 'log' option in '/etc/my.cnf') must be enabled. This logging is not enabled by default.

This update also fixes multiple bugs. Details regarding these bugs can be found in the Red Hat Enterprise Linux 5.4 Technical Notes. You can find a link to the Technical Notes in the References section of this errata.

Note: These updated packages upgrade MySQL to version 5.0.77 to incorporate numerous upstream bug fixes. Details of these changes are found in the following MySQL Release Notes:
http://dev.mysql.com/doc/refman/5.0/en/news-5-0-77.html

All MySQL users are advised to upgrade to these updated packages, which resolve these issues. After installing this update, the MySQL server daemon (mysqld) will be restarted automatically.

Updated openssh packages that fix a security issue, a bug, and add enhancements are now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

OpenSSH is OpenBSD's SSH (Secure Shell) protocol implementation. These packages include the core files necessary for both the OpenSSH client and server.

A flaw was found in the SSH protocol. An attacker able to perform a man-in-the-middle attack may be able to obtain a portion of plain text from an arbitrary ciphertext block when a CBC mode cipher was used to encrypt SSH communication. This update helps mitigate this attack:
OpenSSH clients and servers now prefer CTR mode ciphers to CBC mode, and the OpenSSH server now reads SSH packets up to their full possible length when corruption is detected, rather than reporting errors early, reducing the possibility of successful plain text recovery.
(CVE-2008-5161)

This update also fixes the following bug :

* the ssh client hung when trying to close a session in which a background process still held tty file descriptors open. With this update, this so-called 'hang on exit' error no longer occurs and the ssh client closes the session immediately. (BZ#454812)

In addition, this update adds the following enhancements :

* the SFTP server can now chroot users to various directories, including a user's home directory, after log in. A new configuration option -- ChrootDirectory -- has been added to '/etc/ssh/sshd_config' for setting this up (the default is not to chroot users). Details regarding configuring this new option are in the sshd_config(5) manual page. (BZ#440240)

* the executables which are part of the OpenSSH FIPS module which is being validated will check their integrity and report their FIPS mode status to the system log or to the terminal. (BZ#467268, BZ#492363)

All OpenSSH users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues and add these enhancements. After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

An updated lftp package that fixes one security issue and various bugs is now available for Red Hat Enterprise Linux 5.

This update has been rated as having low security impact by the Red Hat Security Response Team.

LFTP is a sophisticated file transfer program for the FTP and HTTP protocols. Like bash, it has job control and uses the readline library for input. It has bookmarks, built-in mirroring, and can transfer several files in parallel. It is designed with reliability in mind.

It was discovered that lftp did not properly escape shell metacharacters when generating shell scripts using the 'mirror
--script' command. A mirroring script generated to download files from a malicious FTP server could allow an attacker controlling the FTP server to run an arbitrary command as the user running lftp.
(CVE-2007-2348)

This update also fixes the following bugs :

* when using the 'mirror' or 'get' commands with the '-c' option, lftp did not check for some specific conditions that could result in the program becoming unresponsive, hanging and the command not completing.
For example, when waiting for a directory listing, if lftp received a '226' message, denoting an empty directory, it previously ignored the message and kept waiting. With this update, these conditions are properly checked for and lftp no longer hangs when '-c' is used with 'mirror' or 'get'. (BZ#422881)

* when using the 'put', 'mput' or 'reput' commands over a Secure FTP (SFTP) connection, specifying the '-c' option sometimes resulted in corrupted files of incorrect size. With this update, using these commands over SFTP with the '-c' option works as expected, and transferred files are no longer corrupted in the transfer process.
(BZ#434294)

* previously, LFTP linked to the OpenSSL library. OpenSSL's license is, however, incompatible with LFTP's GNU GPL license and LFTP does not include an exception allowing OpenSSL linking. With this update, LFTP links to the GnuTLS (GNU Transport Layer Security) library, which is released under the GNU LGPL license. Like OpenSSL, GnuTLS implements the SSL and TLS protocols, so functionality has not changed. (BZ#458777)

* running 'help mirror' from within lftp only presented a sub-set of the available options compared to the full list presented in the man page. With this update, running 'help mirror' in lftp presents the same list of mirror options as is available in the Commands section of the lftp man page. (BZ#461922)

* LFTP imports gnu-lib from upstream. Subsequent to gnu-lib switching from GNU GPLv2 to GNU GPLv3, the LFTP license was internally inconsistent, with LFTP licensed as GNU GPLv2 but portions of the package apparently licensed as GNU GPLv3 because of changes made by the gnu-lib import. With this update, LFTP itself switches to GNU GPLv3, resolving the inconsistency. (BZ#468858)

* when the 'ls' command was used within lftp to present a directory listing on a remote system connected to via HTTP, file names containing spaces were presented incorrectly. This update corrects this behavior. (BZ#504591)

* the default alias 'edit' did not define a default editor. If EDITOR was not set in advance by the system, lftp attempted to execute '~/.lftp/edit.tmp.$$' (which failed because the file is not set to executable). The edit alias also did not support tab-completion of file names and incorrectly interpreted file names containing spaces.
The updated package defines a default editor (vi) in the absence of a system-defined EDITOR. The edit alias now also supports tab-completion and handles file names containing spaces correctly for both downloading and uploading. (BZ#504594)

Note: This update upgrades LFTP from version 3.7.3 to upstream version 3.7.11, which incorporates a number of further bug fixes to those noted above. For details regarding these fixes, refer to the '/usr/share/doc/lftp-3.7.11/NEWS' file after installing this update.
(BZ#308721)

All LFTP users are advised to upgrade to this updated package, which resolves these issues.

Updated kernel packages that fix security issues, address several hundred bugs and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 5. This is the fourth regular update.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

These updated packages fix the following security issues :

* it was discovered that, when executing a new process, the clear_child_tid pointer in the Linux kernel is not cleared. If this pointer points to a writable portion of the memory of the new program, the kernel could corrupt four bytes of memory, possibly leading to a local denial of service or privilege escalation. (CVE-2009-2848, Important)

* a flaw was found in the way the do_sigaltstack() function in the Linux kernel copies the stack_t structure to user-space. On 64-bit machines, this flaw could lead to a four-byte information leak.
(CVE-2009-2847, Moderate)

* a flaw was found in the ext4 file system code. A local attacker could use this flaw to cause a denial of service by performing a resize operation on a specially crafted ext4 file system.
(CVE-2009-0745, Low)

* multiple flaws were found in the ext4 file system code. A local attacker could use these flaws to cause a denial of service by mounting a specially crafted ext4 file system. (CVE-2009-0746, CVE-2009-0747, CVE-2009-0748, Low)

These updated packages also include several hundred bug fixes for and enhancements to the Linux kernel. Space precludes documenting each of these changes in this advisory and users are directed to the Red Hat Enterprise Linux 5.4 Release Notes for information on the most significant of these changes :

http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/ Release_Notes/

Also, for details concerning every bug fixed in and every enhancement added to the kernel for this release, see the kernel chapter in the Red Hat Enterprise Linux 5.4 Technical Notes :

http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/ Technical_Notes/kernel.html

All Red Hat Enterprise Linux 5 users are advised to install these updated packages, which address these vulnerabilities as well as fixing the bugs and adding the enhancements noted in the Red Hat Enterprise Linux 5.4 Release Notes and Technical Notes. The system must be rebooted for this update to take effect.

An updated dnsmasq package that fixes two security issues is now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Dnsmasq is a lightweight and easy to configure DNS forwarder and DHCP server.

Core Security Technologies discovered a heap overflow flaw in dnsmasq when the TFTP service is enabled (the '--enable-tftp' command line option, or by enabling 'enable-tftp' in '/etc/dnsmasq.conf'). If the configured tftp-root is sufficiently long, and a remote user sends a request that sends a long file name, dnsmasq could crash or, possibly, execute arbitrary code with the privileges of the dnsmasq service (usually the unprivileged 'nobody' user). (CVE-2009-2957)

A NULL pointer dereference flaw was discovered in dnsmasq when the TFTP service is enabled. This flaw could allow a malicious TFTP client to crash the dnsmasq service. (CVE-2009-2958)

Note: The default tftp-root is '/var/ftpd', which is short enough to make it difficult to exploit the CVE-2009-2957 issue; if a longer directory name is used, arbitrary code execution may be possible. As well, the dnsmasq package distributed by Red Hat does not have TFTP support enabled by default.

All users of dnsmasq should upgrade to this updated package, which contains a backported patch to correct these issues. After installing the updated package, the dnsmasq service must be restarted for the update to take effect.

Updated kernel packages that fix two security issues and a bug are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

These updated packages fix the following security issues :

* a flaw was found in the SOCKOPS_WRAP macro in the Linux kernel. This macro did not initialize the sendpage operation in the proto_ops structure correctly. A local, unprivileged user could use this flaw to cause a local denial of service or escalate their privileges.
(CVE-2009-2692, Important)

* a flaw was found in the udp_sendmsg() implementation in the Linux kernel when using the MSG_MORE flag on UDP sockets. A local, unprivileged user could use this flaw to cause a local denial of service or escalate their privileges. (CVE-2009-2698, Important)

Red Hat would like to thank Tavis Ormandy and Julien Tinnes of the Google Security Team for responsibly reporting these flaws.

These updated packages also fix the following bug :

* in the dlm code, a socket was allocated in tcp_connect_to_sock(), but was not freed in the error exit path. This bug led to a memory leak and an unresponsive system. A reported case of this bug occurred after running 'cman_tool kill -n [nodename]'. (BZ#515432)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Updated apr and apr-util packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Apache Portable Runtime (APR) is a portability library used by the Apache HTTP Server and other projects. It aims to provide a free library of C data structures and routines. apr-util is a utility library used with APR. This library provides additional utility interfaces for APR; including support for XML parsing, LDAP, database interfaces, URI parsing, and more.

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in the way the Apache Portable Runtime (APR) manages memory pool and relocatable memory allocations. An attacker could use these flaws to issue a specially crafted request for memory allocation, which would lead to a denial of service (application crash) or, potentially, execute arbitrary code with the privileges of an application using the APR libraries. (CVE-2009-2412)

All apr and apr-util users should upgrade to these updated packages, which contain backported patches to correct these issues. Applications using the APR libraries, such as httpd, must be restarted for this update to take effect.

Updated subversion packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Subversion (SVN) is a concurrent version control system which enables one or more users to collaborate in developing and maintaining a hierarchy of files and directories while keeping a history of all changes.

Matt Lewis, of Google, reported multiple heap overflow flaws in Subversion (server and client) when parsing binary deltas. A malicious user with commit access to a server could use these flaws to cause a heap overflow on that server. A malicious server could use these flaws to cause a heap overflow on a client when it attempts to checkout or update. These heap overflows can result in a crash or, possibly, arbitrary code execution. (CVE-2009-2411)

All Subversion users should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing the updated packages, the Subversion server must be restarted for the update to take effect: restart httpd if you are using mod_dav_svn, or restart svnserve if it is used.

Updated java-1.6.0-openjdk packages that fix several security issues and a bug are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit. The Java Runtime Environment (JRE) contains the software and tools that users need to run applications written using the Java programming language.

A flaw was found in the way the XML Digital Signature implementation in the JRE handled HMAC-based XML signatures. An attacker could use this flaw to create a crafted signature that could allow them to bypass authentication, or trick a user, applet, or application into accepting untrusted content. (CVE-2009-0217)

Several potential information leaks were found in various mutable static variables. These could be exploited in application scenarios that execute untrusted scripting code. (CVE-2009-2475)

It was discovered that OpenType checks can be bypassed. This could allow a rogue application to bypass access restrictions by acquiring references to privileged objects through finalizer resurrection.
(CVE-2009-2476)

A denial of service flaw was found in the way the JRE processes XML. A remote attacker could use this flaw to supply crafted XML that would lead to a denial of service. (CVE-2009-2625)

A flaw was found in the JRE audio system. An untrusted applet or application could use this flaw to gain read access to restricted System properties. (CVE-2009-2670)

Two flaws were found in the JRE proxy implementation. An untrusted applet or application could use these flaws to discover the usernames of users running applets and applications, or obtain web browser cookies and use them for session hijacking attacks. (CVE-2009-2671, CVE-2009-2672)

An additional flaw was found in the proxy mechanism implementation.
This flaw allowed an untrusted applet or application to bypass access restrictions and communicate using non-authorized socket or URL connections to hosts other than the origin host. (CVE-2009-2673)

An integer overflow flaw was found in the way the JRE processes JPEG images. An untrusted application could use this flaw to extend its privileges, allowing it to read and write local files, as well as to execute local applications with the privileges of the user running the application. (CVE-2009-2674)

An integer overflow flaw was found in the JRE unpack200 functionality.
An untrusted applet or application could extend its privileges, allowing it to read and write local files, as well as to execute local applications with the privileges of the user running the applet or application. (CVE-2009-2675)

It was discovered that JDK13Services grants unnecessary privileges to certain object types. This could be misused by an untrusted applet or application to use otherwise restricted functionality. (CVE-2009-2689)

An information disclosure flaw was found in the way private Java variables were handled. An untrusted applet or application could use this flaw to obtain information from variables that would otherwise be private. (CVE-2009-2690)

Note: The flaws concerning applets in this advisory, CVE-2009-2475, CVE-2009-2670, CVE-2009-2671, CVE-2009-2672, CVE-2009-2673, CVE-2009-2675, CVE-2009-2689, and CVE-2009-2690, can only be triggered in java-1.6.0-openjdk by calling the 'appletviewer' application.

This update also fixes the following bug :

* the EVR in the java-1.6.0-openjdk package as shipped with Red Hat Enterprise Linux allowed the java-1.6.0-openjdk package from the EPEL repository to take precedence (appear newer). Users using java-1.6.0-openjdk from EPEL would not have received security updates since October 2008. This update prevents the packages from EPEL from taking precedence. (BZ#499079)

All users of java-1.6.0-openjdk are advised to upgrade to these updated packages, which resolve these issues. All running instances of OpenJDK Java must be restarted for the update to take effect.

Updated kernel packages that fix several security issues and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* the possibility of a timeout value overflow was found in the Linux kernel high-resolution timers functionality, hrtimers. This could allow a local, unprivileged user to execute arbitrary code, or cause a denial of service (kernel panic). (CVE-2007-5966, Important)

* a flaw was found in the Intel PRO/1000 network driver in the Linux kernel. Frames with sizes near the MTU of an interface may be split across multiple hardware receive descriptors. Receipt of such a frame could leak through a validation check, leading to a corruption of the length check. A remote attacker could use this flaw to send a specially crafted packet that would cause a denial of service or code execution. (CVE-2009-1385, Important)

* Michael Tokarev reported a flaw in the Realtek r8169 Ethernet driver in the Linux kernel. This driver allowed interfaces using this driver to receive frames larger than could be handled, which could lead to a remote denial of service or code execution. (CVE-2009-1389, Important)

* the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags were not cleared when a setuid or setgid program was executed. A local, unprivileged user could use this flaw to bypass the mmap_min_addr protection mechanism and perform a NULL pointer dereference attack, or bypass the Address Space Layout Randomization (ASLR) security feature.
(CVE-2009-1895, Important)

* Ramon de Carvalho Valle reported two flaws in the Linux kernel eCryptfs implementation. A local attacker with permissions to perform an eCryptfs mount could modify the metadata of the files in that eCrypfts mount to cause a buffer overflow, leading to a denial of service or privilege escalation. (CVE-2009-2406, CVE-2009-2407, Important)

* Konstantin Khlebnikov discovered a race condition in the ptrace implementation in the Linux kernel. This race condition can occur when the process tracing and the process being traced participate in a core dump. A local, unprivileged user could use this flaw to trigger a deadlock, resulting in a partial denial of service. (CVE-2009-1388, Moderate)

Bug fixes (see References below for a link to more detailed notes) :

* possible dom0 crash when a Xen para-virtualized guest was installed while another para-virtualized guest was rebooting. (BZ#497812)

* no directory removal audit record if the directory and its subtree were recursively watched by an audit rule. (BZ#507561)

* running 'echo 1 > /proc/sys/vm/drop_caches' under high memory load could cause a kernel panic. (BZ#503692)

* on 32-bit systems, core dumps for some multithreaded applications did not include all thread information. (BZ#505322)

* a stack buffer used by get_event_name() was too small for nul terminator sprintf() writes. This could lead to an invalid pointer or kernel panic. (BZ#506906)

* when using the aic94xx driver, systems with SATA drives may not boot due to a libsas bug. (BZ#506029)

* Wacom Cintiq 21UX and Intuos stylus buttons were handled incorrectly when moved away from and back to these tablets. (BZ#508275)

* CPU 'soft lockup' messages and possibe system hangs on systems with certain Broadcom network devices and running the Linux kernel from the kernel-xen package. (BZ#503689)

* on 64-bit PowerPC, getitimer() failed for programs using the ITIMER_REAL timer that were also compiled for 64-bit systems. This caused such programs to abort. (BZ#510018)

* write operations could be blocked even when using O_NONBLOCK.
(BZ#510239)

* the 'pci=nomsi' option was required for installing and booting Red Hat Enterprise Linux 5.2 on systems with VIA VT3364 chipsets.
(BZ#507529)

* shutting down, destroying, or migrating Xen guests with large amounts of memory could cause other guests to be temporarily unresponsive. (BZ#512311)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. Systems must be rebooted for this update to take effect.

Updated bind packages that fix a security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

[Updated 29th July 2009] The packages in this erratum have been updated to also correct this issue in the bind-sdb package.

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

A flaw was found in the way BIND handles dynamic update message packets containing the 'ANY' record type. A remote attacker could use this flaw to send a specially crafted dynamic update packet that could cause named to exit with an assertion failure. (CVE-2009-0696)

Note: even if named is not configured for dynamic updates, receiving such a specially crafted dynamic update packet could still cause named to exit unexpectedly.

All BIND users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing the update, the BIND daemon (named) will be restarted automatically.

Updated python packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Python is an interpreted, interactive, object-oriented programming language.

When the assert() system call was disabled, an input sanitization flaw was revealed in the Python string object implementation that led to a buffer overflow. The missing check for negative size values meant the Python memory allocator could allocate less memory than expected. This could result in arbitrary code execution with the Python interpreter's privileges. (CVE-2008-1887)

Multiple buffer and integer overflow flaws were found in the Python Unicode string processing and in the Python Unicode and string object implementations. An attacker could use these flaws to cause a denial of service (Python application crash). (CVE-2008-3142, CVE-2008-5031)

Multiple integer overflow flaws were found in the Python imageop module. If a Python application used the imageop module to process untrusted images, it could cause the application to disclose sensitive information, crash or, potentially, execute arbitrary code with the Python interpreter's privileges. (CVE-2007-4965, CVE-2008-4864)

Multiple integer underflow and overflow flaws were found in the Python snprintf() wrapper implementation. An attacker could use these flaws to cause a denial of service (memory corruption). (CVE-2008-3144)

Multiple integer overflow flaws were found in various Python modules.
An attacker could use these flaws to cause a denial of service (Python application crash). (CVE-2008-2315, CVE-2008-3143)

An integer signedness error, leading to a buffer overflow, was found in the Python zlib extension module. If a Python application requested the negative byte count be flushed for a decompression stream, it could cause the application to crash or, potentially, execute arbitrary code with the Python interpreter's privileges.
(CVE-2008-1721)

A flaw was discovered in the strxfrm() function of the Python locale module. Strings generated by this function were not properly NULL-terminated, which could possibly cause disclosure of data stored in the memory of a Python application using this function.
(CVE-2007-2052)

Red Hat would like to thank David Remahl of the Apple Product Security team for responsibly reporting the CVE-2008-2315 issue.

All Python users should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated tomcat packages that fix several security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

It was discovered that the Red Hat Security Advisory RHSA-2007:0871 did not address all possible flaws in the way Tomcat handles certain characters and character sequences in cookie values. A remote attacker could use this flaw to obtain sensitive information, such as session IDs, and then use this information for session hijacking attacks.
(CVE-2007-5333)

Note: The fix for the CVE-2007-5333 flaw changes the default cookie processing behavior: with this update, version 0 cookies that contain values that must be quoted to be valid are automatically changed to version 1 cookies. To reactivate the previous, but insecure behavior, add the following entry to the '/etc/tomcat5/catalina.properties' file :

org.apache.tomcat.util.http.ServerCookie.VERSION_SWITCH=false

It was discovered that request dispatchers did not properly normalize user requests that have trailing query strings, allowing remote attackers to send specially crafted requests that would cause an information leak. (CVE-2008-5515)

A flaw was found in the way the Tomcat AJP (Apache JServ Protocol) connector processes AJP connections. An attacker could use this flaw to send specially crafted requests that would cause a temporary denial of service. (CVE-2009-0033)

It was discovered that the error checking methods of certain authentication classes did not have sufficient error checking, allowing remote attackers to enumerate (via brute-force methods) usernames registered with applications running on Tomcat when FORM-based authentication was used. (CVE-2009-0580)

A cross-site scripting (XSS) flaw was found in the examples calendar application. With some web browsers, remote attackers could use this flaw to inject arbitrary web script or HTML via the 'time' parameter.
(CVE-2009-0781)

It was discovered that web applications containing their own XML parsers could replace the XML parser Tomcat uses to parse configuration files. A malicious web application running on a Tomcat instance could read or, potentially, modify the configuration and XML-based data of other web applications deployed on the same Tomcat instance. (CVE-2009-0783)

Users of Tomcat should upgrade to these updated packages, which contain backported patches to resolve these issues. Tomcat must be restarted for this update to take effect.

Updated firefox packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

Mozilla Firefox is an open source Web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code as the user running Firefox.
(CVE-2009-2462, CVE-2009-2463, CVE-2009-2464, CVE-2009-2465, CVE-2009-2466, CVE-2009-2467, CVE-2009-2469, CVE-2009-2471)

Several flaws were found in the way Firefox handles malformed JavaScript code. A website containing malicious content could launch a cross-site scripting (XSS) attack or execute arbitrary JavaScript with the permissions of another website. (CVE-2009-2472)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.0.12. You can find a link to the Mozilla advisories in the References section of this errata.

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.0.12, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated httpd packages that fix two security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Apache HTTP Server is a popular Web server.

A denial of service flaw was found in the Apache mod_proxy module when it was used as a reverse proxy. A remote attacker could use this flaw to force a proxy process to consume large amounts of CPU time.
(CVE-2009-1890)

A denial of service flaw was found in the Apache mod_deflate module.
This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. (CVE-2009-1891)

All httpd users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Updated ruby packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks.

A flaw was found in the way the Ruby POP module processed certain APOP authentication requests. By sending certain responses when the Ruby APOP module attempted to authenticate using APOP against a POP server, a remote attacker could, potentially, acquire certain portions of a user's authentication credentials. (CVE-2007-1558)

It was discovered that Ruby did not properly check the return value when verifying X.509 certificates. This could, potentially, allow a remote attacker to present an invalid X.509 certificate, and have Ruby treat it as valid. (CVE-2009-0642)

A flaw was found in the way Ruby converted BigDecimal objects to Float numbers. If an attacker were able to provide certain input for the BigDecimal object converter, they could crash an application using this class. (CVE-2009-1904)

All Ruby users should upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated pidgin packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. The AOL Open System for CommunicAtion in Realtime (OSCAR) protocol is used by the AOL ICQ and AIM instant messaging systems.

A denial of service flaw was found in the Pidgin OSCAR protocol implementation. If a remote ICQ user sent a web message to a local Pidgin user using this protocol, it would cause excessive memory usage, leading to a denial of service (Pidgin crash). (CVE-2009-1889)

These updated packages also fix the following bug :

* the Yahoo! Messenger Protocol changed, making it incompatible (and unusable) with Pidgin versions prior to 2.5.7. This update provides Pidgin 2.5.8, which implements version 16 of the Yahoo! Messenger Protocol, which resolves this issue.

Note: These packages upgrade Pidgin to version 2.5.8. Refer to the Pidgin release notes for a full list of changes:
http://developer.pidgin.im/wiki/ChangeLog

All Pidgin users should upgrade to these updated packages, which correct these issues. Pidgin must be restarted for this update to take effect.

Updated openswan packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Openswan is a free implementation of Internet Protocol Security (IPsec) and Internet Key Exchange (IKE). IPsec uses strong cryptography to provide both authentication and encryption services.
These services allow you to build secure tunnels through untrusted networks. Everything passing through the untrusted network is encrypted by the IPsec gateway machine, and decrypted by the gateway at the other end of the tunnel. The resulting tunnel is a virtual private network (VPN).

Multiple insufficient input validation flaws were found in the way Openswan's pluto IKE daemon processed some fields of X.509 certificates. A remote attacker could provide a specially crafted X.509 certificate that would crash the pluto daemon. (CVE-2009-2185)

All users of openswan are advised to upgrade to these updated packages, which contain a backported patch to correct these issues.
After installing this update, the ipsec service will be restarted automatically.

Updated kdegraphics packages that fix two security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

The kdegraphics packages contain applications for the K Desktop Environment (KDE). Scalable Vector Graphics (SVG) is an XML-based language to describe vector images. KSVG is a framework aimed at implementing the latest W3C SVG specifications.

A use-after-free flaw was found in the KDE KSVG animation element implementation. A remote attacker could create a specially crafted SVG image, which once opened by an unsuspecting user, could cause a denial of service (Konqueror crash) or, potentially, execute arbitrary code with the privileges of the user running Konqueror. (CVE-2009-1709)

A NULL pointer dereference flaw was found in the KDE, KSVG SVGList interface implementation. A remote attacker could create a specially crafted SVG image, which once opened by an unsuspecting user, would cause memory corruption, leading to a denial of service (Konqueror crash). (CVE-2009-0945)

All users of kdegraphics should upgrade to these updated packages, which contain backported patches to correct these issues. The desktop must be restarted (log out, then log back in) for this update to take effect.

Updated kdelibs packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

The kdelibs packages provide libraries for the K Desktop Environment (KDE).

A flaw was found in the way the KDE CSS parser handled content for the CSS 'style' attribute. A remote attacker could create a specially crafted CSS equipped HTML page, which once visited by an unsuspecting user, could cause a denial of service (Konqueror crash) or, potentially, execute arbitrary code with the privileges of the user running Konqueror. (CVE-2009-1698)

A flaw was found in the way the KDE HTML parser handled content for the HTML 'head' element. A remote attacker could create a specially crafted HTML page, which once visited by an unsuspecting user, could cause a denial of service (Konqueror crash) or, potentially, execute arbitrary code with the privileges of the user running Konqueror.
(CVE-2009-1690)

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way the KDE JavaScript garbage collector handled memory allocation requests. A remote attacker could create a specially crafted HTML page, which once visited by an unsuspecting user, could cause a denial of service (Konqueror crash) or, potentially, execute arbitrary code with the privileges of the user running Konqueror.
(CVE-2009-1687)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The desktop must be restarted (log out, then log back in) for this update to take effect.

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed HTML mail content. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code as the user running Thunderbird. (CVE-2009-1392, CVE-2009-1303, CVE-2009-1305, CVE-2009-1833, CVE-2009-1838)

Several flaws were found in the way malformed HTML mail content was processed. An HTML mail message containing malicious content could execute arbitrary JavaScript in the context of the mail message, possibly presenting misleading data to the user, or stealing sensitive information such as login credentials. (CVE-2009-1306, CVE-2009-1307, CVE-2009-1308, CVE-2009-1309)

A flaw was found in the way Thunderbird handled error responses returned from proxy servers. If an attacker is able to conduct a man-in-the-middle attack against a Thunderbird instance that is using a proxy server, they may be able to steal sensitive information from the site Thunderbird is displaying. (CVE-2009-1836)

Note: JavaScript support is disabled by default in Thunderbird. None of the above issues are exploitable unless JavaScript is enabled.

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird must be restarted for the update to take effect.

Updated gstreamer-plugins-good packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

GStreamer is a streaming media framework, based on graphs of filters which operate on media data. GStreamer Good Plug-ins is a collection of well-supported, good quality GStreamer plug-ins.

Multiple integer overflow flaws, that could lead to a buffer overflow, were found in the GStreamer Good Plug-ins PNG decoding handler. An attacker could create a specially crafted PNG file that would cause an application using the GStreamer Good Plug-ins library to crash or, potentially, execute arbitrary code as the user running the application when parsed. (CVE-2009-1932)

All users of gstreamer-plugins-good are advised to upgrade to these updated packages, which contain a backported patch to correct these issues. After installing the update, all applications using GStreamer Good Plug-ins (such as some media playing applications) must be restarted for the changes to take effect.

Updated icu packages that fix a security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The International Components for Unicode (ICU) library provides robust and full-featured Unicode services.

A flaw was found in the way ICU processed certain, invalid byte sequences during Unicode conversion. If an application used ICU to decode malformed, multibyte character data, it may have been possible to bypass certain content protection mechanisms, or display information in a manner misleading to the user. (CVE-2009-0153)

All users of icu should upgrade to these updated packages, which contain backported patches to resolve this issue.

Updated cyrus-imapd packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support.

It was discovered that the Cyrus SASL library (cyrus-sasl) does not always reliably terminate output from the sasl_encode64() function used by programs using this library. The Cyrus IMAP server (cyrus-imapd) relied on this function's output being properly terminated. Under certain conditions, improperly terminated output from sasl_encode64() could, potentially, cause cyrus-imapd to crash, disclose portions of its memory, or lead to SASL authentication failures. (CVE-2009-0688)

Users of cyrus-imapd are advised to upgrade to these updated packages, which resolve this issue. After installing the update, cyrus-imapd will be restarted automatically.

Updated apr-util packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

apr-util is a utility library used with the Apache Portable Runtime (APR). It aims to provide a free library of C data structures and routines. This library contains additional utility interfaces for APR;
including support for XML, LDAP, database interfaces, URI parsing, and more.

An off-by-one overflow flaw was found in the way apr-util processed a variable list of arguments. An attacker could provide a specially crafted string as input for the formatted output conversion routine, which could, on big-endian platforms, potentially lead to the disclosure of sensitive information or a denial of service (application crash). (CVE-2009-1956)

Note: The CVE-2009-1956 flaw only affects big-endian platforms, such as the IBM S/390 and PowerPC. It does not affect users using the apr-util package on little-endian platforms, due to their different organization of byte ordering used to represent particular data.

A denial of service flaw was found in the apr-util Extensible Markup Language (XML) parser. A remote attacker could create a specially crafted XML document that would cause excessive memory consumption when processed by the XML decoding engine. (CVE-2009-1955)

A heap-based underwrite flaw was found in the way apr-util created compiled forms of particular search patterns. An attacker could formulate a specially crafted search keyword, that would overwrite arbitrary heap memory locations when processed by the pattern preparation engine. (CVE-2009-0023)

All apr-util users should upgrade to these updated packages, which contain backported patches to correct these issues. Applications using the Apache Portable Runtime library, such as httpd, must be restarted for this update to take effect.

Updated kernel packages that fix several security issues and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* several flaws were found in the way the Linux kernel CIFS implementation handles Unicode strings. CIFS clients convert Unicode strings sent by a server to their local character sets, and then write those strings into memory. If a malicious server sent a long enough string, it could write past the end of the target memory region and corrupt other memory areas, possibly leading to a denial of service or privilege escalation on the client mounting the CIFS share.
(CVE-2009-1439, CVE-2009-1633, Important)

* the Linux kernel Network File System daemon (nfsd) implementation did not drop the CAP_MKNOD capability when handling requests from local, unprivileged users. This flaw could possibly lead to an information leak or privilege escalation. (CVE-2009-1072, Moderate)

* Frank Filz reported the NFSv4 client was missing a file permission check for the execute bit in some situations. This could allow local, unprivileged users to run non-executable files on NFSv4 mounted file systems. (CVE-2009-1630, Moderate)

* a missing check was found in the hypervisor_callback() function in the Linux kernel provided by the kernel-xen package. This could cause a denial of service of a 32-bit guest if an application running in that guest accesses a certain memory location in the kernel.
(CVE-2009-1758, Moderate)

* a flaw was found in the AGPGART driver. The agp_generic_alloc_page() and agp_generic_alloc_pages() functions did not zero out the memory pages they allocate, which may later be available to user-space processes. This flaw could possibly lead to an information leak.
(CVE-2009-1192, Low)

Bug fixes :

* a race in the NFS client between destroying cached access rights and unmounting an NFS file system could have caused a system crash. 'Busy inodes' messages may have been logged. (BZ#498653)

* nanosleep() could sleep several milliseconds less than the specified time on Intel Itanium(r)-based systems. (BZ#500349)

* LEDs for disk drives in AHCI mode may have displayed a fault state when there were no faults. (BZ#500120)

* ptrace_do_wait() reported tasks were stopped each time the process doing the trace called wait(), instead of reporting it once.
(BZ#486945)

* epoll_wait() may have caused a system lockup and problems for applications. (BZ#497322)

* missing capabilities could possibly allow users with an fsuid other than 0 to perform actions on some file system types that would otherwise be prevented. (BZ#497271)

* on NFS mounted file systems, heavy write loads may have blocked nfs_getattr() for long periods, causing commands that use stat(2), such as ls, to hang. (BZ#486926)

* in rare circumstances, if an application performed multiple O_DIRECT reads per virtual memory page and also performed fork(2), the buffer storing the result of the I/O may have ended up with invalid data.
(BZ#486921)

* when using GFS2, gfs2_quotad may have entered an uninterpretable sleep state. (BZ#501742)

* with this update, get_random_int() is more random and no longer uses a common seed value, reducing the possibility of predicting the values returned. (BZ#499783)

* the '-fwrapv' flag was added to the gcc build options to prevent gcc from optimizing away wrapping. (BZ#501751)

* a kernel panic when enabling and disabling iSCSI paths. (BZ#502916)

* using the Broadcom NetXtreme BCM5704 network device with the tg3 driver caused high system load and very bad performance. (BZ#502837)

* '/proc/[pid]/maps' and '/proc/[pid]/smaps' can only be read by processes able to use the ptrace() call on a given process; however, certain information from '/proc/[pid]/stat' and '/proc/[pid]/wchan' could be used to reconstruct memory maps. (BZ#499546)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

An updated cscope package that fixes multiple security issues is now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

cscope is a mature, ncurses-based, C source-code tree browsing tool.

Multiple buffer overflow flaws were found in cscope. An attacker could create a specially crafted source code file that could cause cscope to crash or, possibly, execute arbitrary code when browsed with cscope.
(CVE-2004-2541, CVE-2009-0148)

All users of cscope are advised to upgrade to this updated package, which contains backported patches to fix these issues. All running instances of cscope must be restarted for this update to take effect.

Updated firefox packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

Mozilla Firefox is an open source Web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code as the user running Firefox.
(CVE-2009-1392, CVE-2009-1832, CVE-2009-1833, CVE-2009-1837, CVE-2009-1838, CVE-2009-1841)

Multiple flaws were found in the processing of malformed, local file content. If a user loaded malicious, local content via the file:// URL, it was possible for that content to access other local data.
(CVE-2009-1835, CVE-2009-1839)

A script, privilege elevation flaw was found in the way Firefox loaded XML User Interface Language (XUL) scripts. Firefox and certain add-ons could load malicious content when certain policy checks did not happen. (CVE-2009-1840)

A flaw was found in the way Firefox displayed certain Unicode characters in International Domain Names (IDN). If an IDN contained invalid characters, they may have been displayed as spaces, making it appear to the user that they were visiting a trusted site.
(CVE-2009-1834)

A flaw was found in the way Firefox handled error responses returned from proxy servers. If an attacker is able to conduct a man-in-the-middle attack against a Firefox instance that is using a proxy server, they may be able to steal sensitive information from the site the user is visiting. (CVE-2009-1836)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.0.11. You can find a link to the Mozilla advisories in the References section of this errata.

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.0.11, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated cups packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Common UNIX(r) Printing System (CUPS) provides a portable printing layer for UNIX operating systems. The Internet Printing Protocol (IPP) allows users to print and manage printing-related tasks over a network.

A NULL pointer dereference flaw was found in the CUPS IPP routine, used for processing incoming IPP requests for the CUPS scheduler. An attacker could use this flaw to send specially crafted IPP requests that would crash the cupsd daemon. (CVE-2009-0949)

Red Hat would like to thank Anibal Sacco from Core Security Technologies for reporting this issue.

Users of cups are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the cupsd daemon will be restarted automatically.

Updated httpd packages that fix two security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Apache HTTP Server is a popular and freely-available Web server.

A flaw was found in the handling of compression structures between mod_ssl and OpenSSL. If too many connections were opened in a short period of time, all system memory and swap space would be consumed by httpd, negatively impacting other processes, or causing a system crash. (CVE-2008-1678)

Note: The CVE-2008-1678 issue did not affect Red Hat Enterprise Linux 5 prior to 5.3. The problem was introduced via the RHBA-2009:0181 errata in Red Hat Enterprise Linux 5.3, which upgraded OpenSSL to the newer 0.9.8e version.

A flaw was found in the handling of the 'Options' and 'AllowOverride' directives. In configurations using the 'AllowOverride' directive with certain 'Options=' arguments, local users were not restricted from executing commands from a Server-Side-Include script as intended.
(CVE-2009-1195)

All httpd users should upgrade to these updated packages, which contain backported patches to resolve these issues. Users must restart httpd for this update to take effect.

Updated freetype packages that fix various security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. These packages provide the FreeType 2 font engine.

Tavis Ormandy of the Google Security Team discovered several integer overflow flaws in the FreeType 2 font engine. If a user loaded a carefully-crafted font file with an application linked against FreeType 2, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2009-0946)

Users are advised to upgrade to these updated packages, which contain a backported patch to correct these issues. The X server must be restarted (log out, then log back in) for this update to take effect.

Updated pidgin packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously.

A buffer overflow flaw was found in the way Pidgin initiates file transfers when using the Extensible Messaging and Presence Protocol (XMPP). If a Pidgin client initiates a file transfer, and the remote target sends a malformed response, it could cause Pidgin to crash or, potentially, execute arbitrary code with the permissions of the user running Pidgin. This flaw only affects accounts using XMPP, such as Jabber and Google Talk. (CVE-2009-1373)

A denial of service flaw was found in Pidgin's QQ protocol decryption handler. When the QQ protocol decrypts packet information, heap data can be overwritten, possibly causing Pidgin to crash. (CVE-2009-1374)

A flaw was found in the way Pidgin's PurpleCircBuffer object is expanded. If the buffer is full when more data arrives, the data stored in this buffer becomes corrupted. This corrupted data could result in confusing or misleading data being presented to the user, or possibly crash Pidgin. (CVE-2009-1375)

It was discovered that on 32-bit platforms, the Red Hat Security Advisory RHSA-2008:0584 provided an incomplete fix for the integer overflow flaw affecting Pidgin's MSN protocol handler. If a Pidgin client receives a specially crafted MSN message, it may be possible to execute arbitrary code with the permissions of the user running Pidgin. (CVE-2009-1376)

Note: By default, when using an MSN account, only users on your buddy list can send you messages. This prevents arbitrary MSN users from exploiting this flaw.

All Pidgin users should upgrade to these updated packages, which contain backported patches to resolve these issues. Pidgin must be restarted for this update to take effect.

An updated ntp package that fixes two security issues is now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source.

A buffer overflow flaw was discovered in the ntpd daemon's NTPv4 authentication code. If ntpd was configured to use public key cryptography for NTP packet authentication, a remote attacker could use this flaw to send a specially crafted request packet that could crash ntpd. (CVE-2009-1252)

Note: NTP authentication is not enabled by default.

A buffer overflow flaw was found in the ntpq diagnostic command. A malicious, remote server could send a specially crafted reply to an ntpq request that could crash ntpq. (CVE-2009-0159)

All ntp users are advised to upgrade to this updated package, which contains backported patches to resolve these issues. After installing the update, the ntpd daemon will be restarted automatically.

An updated ipsec-tools package that fixes multiple security issues is now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The ipsec-tools package is used in conjunction with the IPsec functionality in the Linux kernel and includes racoon, an IKEv1 keying daemon.

A denial of service flaw was found in the ipsec-tools racoon daemon.
An unauthenticated, remote attacker could trigger a NULL pointer dereference that could cause the racoon daemon to crash.
(CVE-2009-1574)

Multiple memory leak flaws were found in the ipsec-tools racoon daemon. If a remote attacker is able to make multiple connection attempts to the racoon daemon, it was possible to cause the racoon daemon to consume all available memory. (CVE-2009-1632)

Users of ipsec-tools should upgrade to this updated package, which contains backported patches to correct these issues. Users must restart the racoon daemon for this update to take effect.

Updated poppler packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Poppler is a Portable Document Format (PDF) rendering library, used by applications such as Evince.

Multiple integer overflow flaws were found in poppler. An attacker could create a malicious PDF file that would cause applications that use poppler (such as Evince) to crash or, potentially, execute arbitrary code when opened. (CVE-2009-0147, CVE-2009-1179, CVE-2009-1187, CVE-2009-1188)

Multiple buffer overflow flaws were found in poppler's JBIG2 decoder.
An attacker could create a malicious PDF file that would cause applications that use poppler (such as Evince) to crash or, potentially, execute arbitrary code when opened. (CVE-2009-0146, CVE-2009-1182)

Multiple flaws were found in poppler's JBIG2 decoder that could lead to the freeing of arbitrary memory. An attacker could create a malicious PDF file that would cause applications that use poppler (such as Evince) to crash or, potentially, execute arbitrary code when opened. (CVE-2009-0166, CVE-2009-1180)

Multiple input validation flaws were found in poppler's JBIG2 decoder.
An attacker could create a malicious PDF file that would cause applications that use poppler (such as Evince) to crash or, potentially, execute arbitrary code when opened. (CVE-2009-0800)

Multiple denial of service flaws were found in poppler's JBIG2 decoder. An attacker could create a malicious PDF file that would cause applications that use poppler (such as Evince) to crash when opened. (CVE-2009-0799, CVE-2009-1181, CVE-2009-1183)

Red Hat would like to thank Braden Thomas and Drew Yao of the Apple Product Security team, and Will Dormann of the CERT/CC for responsibly reporting these flaws.

Users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

An updated perl-DBD-Pg package that fixes two security issues is now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Perl DBI is a database access Application Programming Interface (API) for the Perl language. perl-DBD-Pg allows Perl applications to access PostgreSQL database servers.

A heap-based buffer overflow flaw was discovered in the pg_getline function implementation. If the pg_getline or getline functions read large, untrusted records from a database, it could cause an application using these functions to crash or, possibly, execute arbitrary code. (CVE-2009-0663)

Note: After installing this update, pg_getline may return more data than specified by its second argument, as this argument will be ignored. This is consistent with current upstream behavior.
Previously, the length limit (the second argument) was not enforced, allowing a buffer overflow.

A memory leak flaw was found in the function performing the de-quoting of BYTEA type values acquired from a database. An attacker able to cause an application using perl-DBD-Pg to perform a large number of SQL queries returning BYTEA records, could cause the application to use excessive amounts of memory or, possibly, crash. (CVE-2009-1341)

All users of perl-DBD-Pg are advised to upgrade to this updated package, which contains backported patches to fix these issues.
Applications using perl-DBD-Pg must be restarted for the update to take effect.

ID	Name	Severity
43796	CentOS 5 : kvm (CESA-2009:1465)	high
43795	CentOS 4 / 5 : cyrus-imapd (CESA-2009:1459)	high
43794	CentOS 5 : kernel (CESA-2009:1455)	medium
43793	CentOS 4 / 5 : pidgin (CESA-2009:1453)	medium
43792	CentOS 4 / 5 : neon (CESA-2009:1452)	medium
43791	CentOS 5 : freeradius (CESA-2009:1451)	medium
43790	CentOS 4 : kernel (CESA-2009:1438)	high
43789	CentOS 5 : gdm (CESA-2009:1364)	medium
43788	CentOS 5 : cman (CESA-2009:1341)	medium
43787	CentOS 5 : rgmanager (CESA-2009:1339)	medium
43786	CentOS 5 : gfs2-utils (CESA-2009:1337)	medium
43785	CentOS 5 : openssl (CESA-2009:1335)	medium
43784	CentOS 5 : nfs-utils (CESA-2009:1321)	high
43783	CentOS 5 : ecryptfs-utils (CESA-2009:1307)	high
43782	CentOS 5 : mysql (CESA-2009:1289)	high
43781	CentOS 5 : openssh (CESA-2009:1287)	low
43780	CentOS 5 : lftp (CESA-2009:1278)	medium
43779	CentOS 5 : kernel (CESA-2009:1243)	medium
43778	CentOS 5 : dnsmasq (CESA-2009:1238)	medium
43777	CentOS 5 : kernel (CESA-2009:1222)	high
43776	CentOS 5 : apr (CESA-2009:1204)	critical
43775	CentOS 5 : subversion (CESA-2009:1203)	high
43774	CentOS 5 : java-1.6.0-openjdk (CESA-2009:1201)	critical
43773	CentOS 5 : kernel (CESA-2009:1193)	high
43772	CentOS 5 : bind (CESA-2009:1179)	medium
43771	CentOS 5 : python (CESA-2009:1176)	critical
43770	CentOS 5 : tomcat (CESA-2009:1164)	medium
43769	CentOS 5 : firefox (CESA-2009:1162)	critical
43768	CentOS 5 : httpd (CESA-2009:1148)	high
43767	CentOS 5 : ruby (CESA-2009:1140)	medium
43766	CentOS 5 : pidgin (CESA-2009:1139)	medium
43765	CentOS 5 : openswan (CESA-2009:1138)	medium
43764	CentOS 5 : kdegraphics (CESA-2009:1130)	high
43763	CentOS 5 : kdelibs (CESA-2009:1127)	high
43762	CentOS 5 : thunderbird (CESA-2009:1126)	high
43761	CentOS 5 : gstreamer-plugins-good (CESA-2009:1123)	medium
43760	CentOS 5 : icu (CESA-2009:1122)	medium
43759	CentOS 5 : cyrus-imapd (CESA-2009:1116)	high
43758	CentOS 5 : apr-util (CESA-2009:1107)	high
43757	CentOS 5 : kernel (CESA-2009:1106)	high
43756	CentOS 5 : cscope (CESA-2009:1102)	high
43755	CentOS 5 : firefox (CESA-2009:1095)	high
43754	CentOS 5 : cups (CESA-2009:1082)	medium
43753	CentOS 5 : httpd (CESA-2009:1075)	medium
43752	CentOS 5 : freetype (CESA-2009:1061)	critical
43751	CentOS 4 / 5 : pidgin (CESA-2009:1060)	critical
43750	CentOS 5 : ntp (CESA-2009:1039)	medium
43749	CentOS 5 : ipsec-tools (CESA-2009:1036)	medium
43748	CentOS 5 : poppler (CESA-2009:0480)	high
43747	CentOS 5 : perl-DBD-Pg (CESA-2009:0479)	high

Detections

Analytics

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