Updated libtiff packages that fix several security issues are now available for Red Hat Enterprise Linux 3, 4, and 5.

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

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Several integer overflow flaws, leading to heap-based buffer overflows, were found in various libtiff color space conversion tools.
An attacker could create a specially crafted TIFF file, which once opened by an unsuspecting user, would cause the conversion tool to crash or, potentially, execute arbitrary code with the privileges of the user running the tool. (CVE-2009-2347)

A buffer underwrite flaw was found in libtiff's Lempel-Ziv-Welch (LZW) compression algorithm decoder. An attacker could create a specially crafted LZW-encoded TIFF file, which once opened by an unsuspecting user, would cause an application linked with libtiff to access an out-of-bounds memory location, leading to a denial of service (application crash). (CVE-2009-2285)

The CVE-2009-2347 flaws were discovered by Tielei Wang from ICST-ERCIS, Peking University.

All libtiff users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, all applications linked with the libtiff library (such as Konqueror) must be restarted for the update to take effect.

Updated dhcp packages that fix two security issues are now available for Red Hat Enterprise Linux 3.

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

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address.

The Mandriva Linux Engineering Team discovered a stack-based buffer overflow flaw in the ISC DHCP client. If the DHCP client were to receive a malicious DHCP response, it could crash or execute arbitrary code with the permissions of the client (root). (CVE-2009-0692)

An insecure temporary file use flaw was discovered in the DHCP daemon's init script ('/etc/init.d/dhcpd'). A local attacker could use this flaw to overwrite an arbitrary file with the output of the 'dhcpd
-t' command via a symbolic link attack, if a system administrator executed the DHCP init script with the 'configtest', 'restart', or 'reload' option. (CVE-2009-1893)

Users of DHCP should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated SeaMonkey packages that fix a security issue are now available for Red Hat Enterprise Linux 3 and 4.

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

SeaMonkey is an open source Web browser, email and newsgroup client, IRC chat client, and HTML editor.

A flaw was found in the way that SeaMonkey parsed malformed HTML mail messages. If a user opened a specially crafted HTML mail message, it could cause SeaMonkey to crash or, possibly, to execute arbitrary code as the user running SeaMonkey. (CVE-2009-2210)

All SeaMonkey users should upgrade to these updated packages, which correct this issue. After installing the update, SeaMonkey must be restarted for the changes to take effect.

Updated kdelibs packages that fix one security issue are now available for Red Hat Enterprise Linux 3.

This update has been rated as having important 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)

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

Updated net-snmp packages that fix a security issue are now available for Red Hat Enterprise Linux 3.

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

The Simple Network Management Protocol (SNMP) is a protocol used for network management.

A divide-by-zero flaw was discovered in the snmpd daemon. A remote attacker could issue a specially crafted GETBULK request that could crash the snmpd daemon. (CVE-2009-1887)

Note: An attacker must have read access to the SNMP server in order to exploit this flaw. In the default configuration, the community name 'public' grants read-only access. In production deployments, it is recommended to change this default community name.

All net-snmp users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the snmpd and snmptrapd daemons will be restarted automatically.

Updated httpd packages that fix multiple security issues are now available for Red Hat Enterprise Linux 3.

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

The Apache HTTP Server is a popular Web server. The httpd package shipped with Red Hat Enterprise Linux 3 contains an embedded copy of the Apache Portable Runtime (APR) utility library, a free library of C data structures and routines, which includes interfaces to support XML parsing, LDAP connections, 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 httpd 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 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.

An updated cscope package that fixes multiple security issues is now available for Red Hat Enterprise Linux 3 and 4.

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-2006-4262, CVE-2009-0148, CVE-2009-1577)

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 wireshark packages that fix several security issues are now available for Red Hat Enterprise Linux 3, 4, and 5.

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

Wireshark is a program for monitoring network traffic. Wireshark was previously known as Ethereal.

A format string flaw was found in Wireshark. If Wireshark read a malformed packet off a network or opened a malicious dump file, it could crash or, possibly, execute arbitrary code as the user running Wireshark. (CVE-2009-1210)

Several denial of service flaws were found in Wireshark. Wireshark could crash or stop responding if it read a malformed packet off a network, or opened a malicious dump file. (CVE-2009-1268, CVE-2009-1269, CVE-2009-1829)

Users of wireshark should upgrade to these updated packages, which contain Wireshark version 1.0.8, and resolve these issues. All running instances of Wireshark must be restarted for the update to take effect.

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 3 and 4.

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

SeaMonkey is an open source Web browser, email and newsgroup client, IRC chat client, and HTML editor.

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

A flaw was 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)

All SeaMonkey users should upgrade to these updated packages, which correct these issues. After installing the update, SeaMonkey must be restarted for the changes to take effect.

Updated cups packages that fix multiple security issues are now available for Red Hat Enterprise Linux 3 and 4.

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. The CUPS 'pdftops' filter converts Portable Document Format (PDF) files to PostScript. 'pdftops' is based on Xpdf and the CUPS imaging library.

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)

A use-after-free flaw was found in the CUPS scheduler directory services routine, used to process data about available printers and printer classes. An attacker could use this flaw to cause a denial of service (cupsd daemon stop or crash). (CVE-2009-1196)

Multiple integer overflows flaws, leading to heap-based buffer overflows, were found in the CUPS 'pdftops' filter. An attacker could create a malicious PDF file that would cause 'pdftops' to crash or, potentially, execute arbitrary code as the 'lp' user if the file was printed. (CVE-2009-0791)

Red Hat would like to thank Anibal Sacco from Core Security Technologies for reporting the CVE-2009-0949 flaw, and Swen van Brussel for reporting the CVE-2009-1196 flaw.

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

An updated squirrelmail package that fixes multiple security issues is now available for Red Hat Enterprise Linux 3, 4, and 5.

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

SquirrelMail is a standards-based webmail package written in PHP.

A server-side code injection flaw was found in the SquirrelMail 'map_yp_alias' function. If SquirrelMail was configured to retrieve a user's IMAP server address from a Network Information Service (NIS) server via the 'map_yp_alias' function, an unauthenticated, remote attacker using a specially crafted username could use this flaw to execute arbitrary code with the privileges of the web server.
(CVE-2009-1579)

Multiple cross-site scripting (XSS) flaws were found in SquirrelMail.
An attacker could construct a carefully crafted URL, which once visited by an unsuspecting user, could cause the user's web browser to execute malicious script in the context of the visited SquirrelMail web page. (CVE-2009-1578)

It was discovered that SquirrelMail did not properly sanitize Cascading Style Sheets (CSS) directives used in HTML mail. A remote attacker could send a specially crafted email that could place mail content above SquirrelMail's controls, possibly allowing phishing and cross-site scripting attacks. (CVE-2009-1581)

Users of squirrelmail should upgrade to this updated package, which contains backported patches to correct these issues.

An updated acpid package that fixes one security issue is now available for Red Hat Enterprise Linux 2.1, 3, 4, and 5.

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

acpid is a daemon that dispatches ACPI (Advanced Configuration and Power Interface) events to user-space programs.

Anthony de Almeida Lopes of Outpost24 AB reported a denial of service flaw in the acpid daemon's error handling. If an attacker could exhaust the sockets open to acpid, the daemon would enter an infinite loop, consuming most CPU resources and preventing acpid from communicating with legitimate processes. (CVE-2009-0798)

Users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

Updated kernel packages that fix several security issues and various 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.

Security fixes :

* a logic error was found in the do_setlk() function of the Linux kernel Network File System (NFS) implementation. If a signal interrupted a lock request, the local POSIX lock was incorrectly created. This could cause a denial of service on the NFS server if a file descriptor was closed before its corresponding lock request returned. (CVE-2008-4307, Important)

* a deficiency was found in the Linux kernel system call auditing implementation on 64-bit systems. This could allow a local, unprivileged user to circumvent a system call audit configuration, if that configuration filtered based on the 'syscall' number or arguments. (CVE-2009-0834, Important)

* Chris Evans reported a deficiency in the Linux kernel signals implementation. The clone() system call permits the caller to indicate the signal it wants to receive when its child exits. When clone() is called with the CLONE_PARENT flag, it permits the caller to clone a new child that shares the same parent as itself, enabling the indicated signal to be sent to the caller's parent (instead of the caller), even if the caller's parent has different real and effective user IDs. This could lead to a denial of service of the parent.
(CVE-2009-0028, Moderate)

* the sock_getsockopt() function in the Linux kernel did not properly initialize a data structure that can be directly returned to user-space when the getsockopt() function is called with SO_BSDCOMPAT optname set. This flaw could possibly lead to memory disclosure.
(CVE-2009-0676, Moderate)

Bug fixes :

* a kernel crash may have occurred for Red Hat Enterprise Linux 4.7 guests if their guest configuration file specified 'vif = [ 'type=ioemu' ]'. This crash only occurred when starting guests via the 'xm create' command. (BZ#477146)

* a bug in IO-APIC NMI watchdog may have prevented Red Hat Enterprise Linux 4.7 from being installed on HP ProLiant DL580 G5 systems. Hangs during installation and 'NMI received for unknown reason [xx]' errors may have occurred. (BZ#479184)

* a kernel deadlock on some systems when using netdump through a network interface that uses the igb driver. (BZ#480579)

* a possible kernel hang in sys_ptrace() on the Itanium(r) architecture, possibly triggered by tracing a threaded process with strace. (BZ#484904)

* the RHSA-2008:0665 errata only fixed the known problem with the LSI Logic LSI53C1030 Ultra320 SCSI controller, for tape devices. Read commands sent to tape devices may have received incorrect data. This issue may have led to data corruption. This update includes a fix for all types of devices. (BZ#487399)

* a missing memory barrier caused a race condition in the AIO subsystem between the read_events() and aio_complete() functions. This may have caused a thread in read_events() to sleep indefinitely, possibly causing an application hang. (BZ#489935)

* due to a lack of synchronization in the NFS client code, modifications to some pages (for files on an NFS mounted file system) made through a region of memory mapped by mmap() may be lost if the NFS client invalidates its page cache for particular files.
(BZ#490119)

* a NULL pointer dereference in the megaraid_mbox driver caused a system crash on some systems. (BZ#493420)

* the ext3_symlink() function in the ext3 file system code used an illegal __GFP_FS allocation inside some transactions. This may have resulted in a kernel panic and 'Assertion failure' errors. (BZ#493422)

* do_machine_check() cleared all Machine Check Exception (MCE) status registers, preventing the BIOS from using them to determine the cause of certain panics and errors. (BZ#494915)

* a bug prevented NMI watchdog from initializing on HP ProLiant DL580 G5 systems. (BZ#497330)

This update contains backported patches to fix these issues. The system must be rebooted for this update to take effect.

An updated gpdf package that fixes multiple security issues is 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.

GPdf is a viewer for Portable Document Format (PDF) files.

Multiple integer overflow flaws were found in GPdf's JBIG2 decoder. An attacker could create a malicious PDF file that would cause GPdf to crash or, potentially, execute arbitrary code when opened.
(CVE-2009-0147, CVE-2009-1179)

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

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

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

Multiple denial of service flaws were found in GPdf's JBIG2 decoder.
An attacker could create a malicious PDF that would cause GPdf 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 this updated package, which contains backported patches to correct these issues.

Updated libwmf packages that fix one security issue 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.

libwmf is a library for reading and converting Windows Metafile Format (WMF) vector graphics. libwmf is used by applications such as GIMP and ImageMagick.

A pointer use-after-free flaw was found in the GD graphics library embedded in libwmf. An attacker could create a specially crafted WMF file that would cause an application using libwmf to crash or, potentially, execute arbitrary code as the user running the application when opened by a victim. (CVE-2009-1364)

Note: This flaw is specific to the GD graphics library embedded in libwmf. It does not affect the GD graphics library from the 'gd' packages, or applications using it.

Red Hat would like to thank Tavis Ormandy of the Google Security Team for responsibly reporting this flaw.

All users of libwmf are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, all applications using libwmf must be restarted for the update to take effect.

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 2.1, 3, and 4.

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

SeaMonkey is an open source Web browser, email and newsgroup client, IRC chat client, and HTML editor.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code as the user running SeaMonkey.
(CVE-2009-1303, CVE-2009-1305)

Several flaws were found in the way malformed web content was processed. A web page containing malicious content could execute arbitrary JavaScript in the context of the site, possibly presenting misleading data to a user, or stealing sensitive information such as login credentials. (CVE-2009-0652, CVE-2009-1306, CVE-2009-1307, CVE-2009-1309, CVE-2009-1312)

A flaw was found in the way SeaMonkey saved certain web pages to a local file. If a user saved the inner frame of a web page containing POST data, the POST data could be revealed to the inner frame, possibly surrendering sensitive information such as login credentials.
(CVE-2009-1311)

All SeaMonkey users should upgrade to these updated packages, which correct these issues. After installing the update, SeaMonkey must be restarted for the changes to take effect.

Updated kdegraphics 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.

The kdegraphics packages contain applications for the K Desktop Environment, including KPDF, a viewer for Portable Document Format (PDF) files.

Multiple integer overflow flaws were found in KPDF's JBIG2 decoder. An attacker could create a malicious PDF file that would cause KPDF to crash or, potentially, execute arbitrary code when opened.
(CVE-2009-0147, CVE-2009-1179)

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

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

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

Multiple denial of service flaws were found in KPDF's JBIG2 decoder.
An attacker could create a malicious PDF that would cause KPDF 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.

Updated cups 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.

The Common UNIX(r) Printing System (CUPS) provides a portable printing layer for UNIX operating systems.

Multiple integer overflow flaws were found in the CUPS JBIG2 decoder.
An attacker could create a malicious PDF file that would cause CUPS to crash or, potentially, execute arbitrary code as the 'lp' user if the file was printed. (CVE-2009-0147, CVE-2009-1179)

Multiple buffer overflow flaws were found in the CUPS JBIG2 decoder.
An attacker could create a malicious PDF file that would cause CUPS to crash or, potentially, execute arbitrary code as the 'lp' user if the file was printed. (CVE-2009-0146, CVE-2009-1182)

Multiple flaws were found in the CUPS JBIG2 decoder that could lead to the freeing of arbitrary memory. An attacker could create a malicious PDF file that would cause CUPS to crash or, potentially, execute arbitrary code as the 'lp' user if the file was printed.
(CVE-2009-0166, CVE-2009-1180)

Multiple input validation flaws were found in the CUPS JBIG2 decoder.
An attacker could create a malicious PDF file that would cause CUPS to crash or, potentially, execute arbitrary code as the 'lp' user if the file was printed. (CVE-2009-0800)

An integer overflow flaw, leading to a heap-based buffer overflow, was discovered in the Tagged Image File Format (TIFF) decoding routines used by the CUPS image-converting filters, 'imagetops' and 'imagetoraster'. An attacker could create a malicious TIFF file that could, potentially, execute arbitrary code as the 'lp' user if the file was printed. (CVE-2009-0163)

Multiple denial of service flaws were found in the CUPS JBIG2 decoder.
An attacker could create a malicious PDF file that would cause CUPS to crash when printed. (CVE-2009-0799, CVE-2009-1181, CVE-2009-1183)

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

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

Updated device-mapper-multipath packages that fix a security issue 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 device-mapper multipath packages provide tools to manage multipath devices by issuing instructions to the device-mapper multipath kernel module, and by managing the creation and removal of partitions for device-mapper devices.

It was discovered that the multipathd daemon set incorrect permissions on the socket used to communicate with command line clients. An unprivileged, local user could use this flaw to send commands to multipathd, resulting in access disruptions to storage devices accessible via multiple paths and, possibly, file system corruption on these devices. (CVE-2009-0115)

Users of device-mapper-multipath are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. The multipathd service must be restarted for the changes to take effect.

Important: the version of the multipathd daemon in Red Hat Enterprise Linux 5 has a known issue which may cause a machine to become unresponsive when the multipathd service is stopped. This issue is tracked in the Bugzilla bug #494582; a link is provided in the References section of this erratum. Until this issue is resolved, we recommend restarting the multipathd service by issuing the following commands in sequence :

# killall -KILL multipathd

# service multipathd restart

Updated NetworkManager packages that fix a security issue are now available for Red Hat Enterprise Linux 4.

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

NetworkManager is a network link manager that attempts to keep a wired or wireless network connection active at all times.

An information disclosure flaw was found in NetworkManager's D-Bus interface. A local attacker could leverage this flaw to discover sensitive information, such as network connection passwords and pre-shared keys. (CVE-2009-0365)

Red Hat would like to thank Ludwig Nussel for responsibly reporting this flaw.

NetworkManager users should upgrade to these updated packages, which contain a backported patch that corrects this issue.

Updated evolution and evolution-data-server packages that fixes multiple security issues are now available for Red Hat Enterprise Linux 4.

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

Evolution is the integrated collection of e-mail, calendaring, contact management, communications, and personal information management (PIM) tools for the GNOME desktop environment.

Evolution Data Server provides a unified back-end for applications which interact with contacts, task and calendar information. Evolution Data Server was originally developed as a back-end for Evolution, but is now used by multiple other applications.

Evolution did not properly check the Secure/Multipurpose Internet Mail Extensions (S/MIME) signatures used for public key encryption and signing of e-mail messages. An attacker could use this flaw to spoof a signature by modifying the text of the e-mail message displayed to the user. (CVE-2009-0547)

It was discovered that evolution did not properly validate NTLM (NT LAN Manager) authentication challenge packets. A malicious server using NTLM authentication could cause evolution to disclose portions of its memory or crash during user authentication. (CVE-2009-0582)

Multiple integer overflow flaws which could cause heap-based buffer overflows were found in the Base64 encoding routines used by evolution and evolution-data-server. This could cause evolution, or an application using evolution-data-server, to crash, or, possibly, execute an arbitrary code when large untrusted data blocks were Base64-encoded. (CVE-2009-0587)

All users of evolution and evolution-data-server are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of evolution and evolution-data-server must be restarted for the update to take effect.

Updated evolution-data-server and evolution28-evolution-data-server 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.

Evolution Data Server provides a unified back-end for applications which interact with contacts, task, and calendar information.
Evolution Data Server was originally developed as a back-end for Evolution, but is now used by multiple other applications.

Evolution Data Server did not properly check the Secure/Multipurpose Internet Mail Extensions (S/MIME) signatures used for public key encryption and signing of e-mail messages. An attacker could use this flaw to spoof a signature by modifying the text of the e-mail message displayed to the user. (CVE-2009-0547)

It was discovered that Evolution Data Server did not properly validate NTLM (NT LAN Manager) authentication challenge packets. A malicious server using NTLM authentication could cause an application using Evolution Data Server to disclose portions of its memory or crash during user authentication. (CVE-2009-0582)

Multiple integer overflow flaws which could cause heap-based buffer overflows were found in the Base64 encoding routines used by Evolution Data Server. This could cause an application using Evolution Data Server to crash, or, possibly, execute an arbitrary code when large untrusted data blocks were Base64-encoded. (CVE-2009-0587)

All users of evolution-data-server and evolution28-evolution-data-server are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of Evolution Data Server and applications using it (such as Evolution) must be restarted for the update to take effect.

Updated libsoup and evolution28-libsoup packages that fix a security issue 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.

libsoup is an HTTP client/library implementation for GNOME written in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages.

An integer overflow flaw which caused a heap-based buffer overflow was discovered in libsoup's Base64 encoding routine. An attacker could use this flaw to crash, or, possibly, execute arbitrary code. This arbitrary code would execute with the privileges of the application using libsoup's Base64 routine to encode large, untrusted inputs.
(CVE-2009-0585)

All users of libsoup and evolution28-libsoup should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running applications using the affected library function (such as Evolution configured to connect to the GroupWise back-end) must be restarted for the update to take effect.

An updated thunderbird package that fixes several security issues is 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.

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-2009-0352, CVE-2009-0353, CVE-2009-0772, CVE-2009-0774, CVE-2009-0775)

Several flaws were found in the way malformed content was processed.
An HTML mail message containing specially crafted content could potentially trick a Thunderbird user into surrendering sensitive information. (CVE-2009-0355, CVE-2009-0776)

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.

An updated pidgin package that fixes two security issues is now available for Red Hat Enterprise Linux 3.

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)

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 this update package, which contains backported patches to resolve these issues. Pidgin must be restarted for this update to take effect.

Updated freetype packages that fix various security issues are now available for Red Hat Enterprise Linux 3 and 4.

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 both the FreeType 1 and FreeType 2 font engines.

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)

Chris Evans discovered multiple integer overflow flaws in the FreeType font engine. If a user loaded a carefully-crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2006-1861)

An integer overflow flaw was found in the way the FreeType font engine processed TrueType(r) Font (TTF) files. If a user loaded a carefully-crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2007-2754)

A flaw was discovered in the FreeType TTF font-file format parser when the TrueType virtual machine Byte Code Interpreter (BCI) is enabled.
If a user loaded a carefully-crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2008-1808)

The CVE-2008-1808 flaw did not affect the freetype packages as distributed in Red Hat Enterprise Linux 3 and 4, as they are not compiled with TrueType BCI support. A fix for this flaw has been included in this update as users may choose to recompile the freetype packages in order to enable TrueType BCI support. Red Hat does not, however, provide support for modified and recompiled packages.

Note: For the FreeType 2 font engine, the CVE-2006-1861, CVE-2007-2754, and CVE-2008-1808 flaws were addressed via RHSA-2006:0500, RHSA-2007:0403, and RHSA-2008:0556 respectively. This update provides corresponding updates for the FreeType 1 font engine, included in the freetype packages distributed in Red Hat Enterprise Linux 3 and 4.

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

Updated pango and evolution28-pango packages that fix an integer overflow flaw are now available for Red Hat Enterprise Linux 3, 4, and 5.

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

Pango is a library used for the layout and rendering of internationalized text.

Will Drewry discovered an integer overflow flaw in Pango's pango_glyph_string_set_size() function. If an attacker is able to pass an arbitrarily long string to Pango, it may be possible to execute arbitrary code with the permissions of the application calling Pango.
(CVE-2009-1194)

pango and evolution28-pango users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing this update, you must restart your system or restart the X server for the update to take effect. Note: Restarting the X server closes all open applications and logs you out of your session.

Updated qt packages that correct an integer overflow flaw are now available.

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

Qt is a software toolkit that simplifies the task of writing and maintaining GUI (Graphical User Interface) applications for the X Window System.

Several format string flaws were found in Qt error message handling.
If an application linked against Qt created an error message from user-supplied data in a certain way, it could lead to a denial of service or possibly allow the execution of arbitrary code.
(CVE-2007-3388)

Users of Qt should upgrade to these updated packages, which contain a backported patch to correct these issues.

Red Hat would like to acknowledge Tim Brown of Portcullis Computer Security and Dirk Mueller for these issues.

Updated thunderbird packages that fix several security bugs 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 Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the way Thunderbird processed certain malformed JavaScript code. A web page containing malicious JavaScript code could cause Thunderbird to crash or potentially execute arbitrary code as the user running Thunderbird. (CVE-2007-2867, CVE-2007-2868)

Several denial of service flaws were found in the way Thunderbird handled certain form and cookie data. A malicious website that is able to set arbitrary form and cookie data could prevent Thunderbird from functioning properly. (CVE-2007-1362, CVE-2007-2869)

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

A flaw was found in the way Thunderbird displayed certain web content.
A malicious web page could generate content which could overlay user interface elements such as the hostname and security indicators, tricking users into thinking they are visiting a different site.
(CVE-2007-2871)

Users of Thunderbird are advised to apply this update, which contains Thunderbird version 1.5.0.12 that corrects these issues.

Updated xpdf packages that fix several security issues 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.

Xpdf is an X Window System-based viewer for Portable Document Format (PDF) files.

Alin Rad Pop discovered several flaws in the handling of PDF files. An attacker could create a malicious PDF file that would cause Xpdf to crash, or potentially execute arbitrary code when opened.
(CVE-2007-4352, CVE-2007-5392, CVE-2007-5393)

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

Updated kernel packages that fix various security issues in the Red Hat Enterprise Linux 4 kernel are now available.

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

The Linux kernel is the core of the operating system.

These updated kernel packages contain fixes for the following security issues :

* A flaw was found in the handling of process death signals. This allowed a local user to send arbitrary signals to the suid-process executed by that user. A successful exploitation of this flaw depends on the structure of the suid-program and its signal handling.
(CVE-2007-3848, Important)

* A flaw was found in the CIFS file system. This could cause the umask values of a process to not be honored on CIFS file systems where UNIX extensions are supported. (CVE-2007-3740, Important)

* A flaw was found in the VFAT compat ioctl handling on 64-bit systems. This allowed a local user to corrupt a kernel_dirent struct and cause a denial of service. (CVE-2007-2878, Important)

* A flaw was found in the Advanced Linux Sound Architecture (ALSA). A local user who had the ability to read the /proc/driver/snd-page-alloc file could see portions of kernel memory. (CVE-2007-4571, Moderate)

* A flaw was found in the aacraid SCSI driver. This allowed a local user to make ioctl calls to the driver that should be restricted to privileged users. (CVE-2007-4308, Moderate)

* A flaw was found in the stack expansion when using the hugetlb kernel on PowerPC systems. This allowed a local user to cause a denial of service. (CVE-2007-3739, Moderate)

* A flaw was found in the handling of zombie processes. A local user could create processes that would not be properly reaped which could lead to a denial of service. (CVE-2006-6921, Moderate)

* A flaw was found in the CIFS file system handling. The mount option 'sec=' did not enable integrity checking or produce an error message if used. (CVE-2007-3843, Low)

* A flaw was found in the random number generator implementation that allowed a local user to cause a denial of service or possibly gain privileges. This flaw could be exploited if the root user raised the default wakeup threshold over the size of the output pool.
(CVE-2007-3105, Low)

Additionally, the following bugs were fixed :

* A flaw was found in the kernel netpoll code, creating a potential deadlock condition. If the xmit_lock for a given network interface is held, and a subsequent netpoll event is generated from within the lock owning context (a console message for example), deadlock on that cpu will result, because the netpoll code will attempt to re-acquire the xmit_lock. The fix is to, in the netpoll code, only attempt to take the lock, and fail if it is already acquired (rather than block on it), and queue the message to be sent for later delivery. Any user of netpoll code in the kernel (netdump or netconsole services), is exposed to this problem, and should resolve the issue by upgrading to this kernel release immediately.

* A flaw was found where, under 64-bit mode (x86_64), AMD processors were not able to address greater than a 40-bit physical address space;
and Intel processors were only able to address up to a 36-bit physical address space. The fix is to increase the physical addressing for an AMD processor to 48 bits, and an Intel processor to 38 bits. Please see the Red Hat Knowledgebase for more detailed information.

* A flaw was found in the xenU kernel that may prevent a paravirtualized guest with more than one CPU from starting when running under an Enterprise Linux 5.1 hypervisor. The fix is to allow your Enterprise Linux 4 Xen SMP guests to boot under a 5.1 hypervisor.
Please see the Red Hat Knowledgebase for more detailed information.

Red Hat Enterprise Linux 4 users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated xpdf packages that fix several security issues are now available for Red Hat Enterprise Linux 3.

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

Xpdf is an X Window System-based viewer for Portable Document Format (PDF) files.

Alin Rad Pop discovered several flaws in the handling of PDF files. An attacker could create a malicious PDF file that would cause Xpdf to crash, or potentially execute arbitrary code when opened.
(CVE-2007-4352, CVE-2007-5392, CVE-2007-5393)

A flaw was found in the t1lib library, used in the handling of Type 1 fonts. An attacker could create a malicious file that would cause Xpdf to crash, or potentially execute arbitrary code when opened.
(CVE-2007-4033)

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

Updated tetex packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1 and 3.

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

TeTeX is an implementation of TeX. TeX takes a text file and a set of formatting commands as input, and creates a typesetter-independent DeVice Independent (dvi) file as output.

Alin Rad Pop discovered a flaw in the handling of PDF files. An attacker could create a malicious PDF file that would cause TeTeX to crash, or potentially execute arbitrary code when opened.
(CVE-2007-5393)

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

Updated vim packages that fix various security issues are now available for Red Hat Enterprise Linux 3 and 4.

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

Vim (Visual editor IMproved) is an updated and improved version of the vi editor.

Several input sanitization flaws were found in Vim's keyword and tag handling. If Vim looked up a document's maliciously crafted tag or keyword, it was possible to execute arbitrary code as the user running Vim. (CVE-2008-4101)

A heap-based overflow flaw was discovered in Vim's expansion of file name patterns with shell wildcards. An attacker could create a specially crafted file or directory name that, when opened by Vim, caused the application to crash or, possibly, execute arbitrary code.
(CVE-2008-3432)

Several input sanitization flaws were found in various Vim system functions. If a user opened a specially crafted file, it was possible to execute arbitrary code as the user running Vim. (CVE-2008-2712)

Ulf Harnhammar, of Secunia Research, discovered a format string flaw in Vim's help tag processor. If a user was tricked into executing the 'helptags' command on malicious data, arbitrary code could be executed with the permissions of the user running Vim. (CVE-2007-2953)

All Vim users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated Perl packages that fix a security issue are now available for Red Hat Enterprise Linux 3, 4, and 5.

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

Perl is a high-level programming language commonly used for system administration utilities and Web programming.

A flaw was found in Perl's regular expression engine. Specially crafted input to a regular expression can cause Perl to improperly allocate memory, possibly resulting in arbitrary code running with the permissions of the user running Perl. (CVE-2007-5116)

Users of Perl are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.

Red Hat would like to thank Tavis Ormandy and Will Drewry for properly disclosing this issue.

Updated SeaMonkey packages that fix several security bugs are now available for Red Hat Enterprise Linux 2.1, 3, and 4.

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

SeaMonkey is an open source Web browser, advanced email and newsgroup client, IRC chat client, and HTML editor.

Several flaws were found in the way SeaMonkey processed certain malformed JavaScript code. A web page containing malicious JavaScript code could cause SeaMonkey to crash or potentially execute arbitrary code as the user running SeaMonkey. (CVE-2007-2867, CVE-2007-2868)

A flaw was found in the way SeaMonkey handled certain FTP PASV commands. A malicious FTP server could use this flaw to perform a rudimentary port-scan of machines behind a user's firewall.
(CVE-2007-1562)

Several denial of service flaws were found in the way SeaMonkey handled certain form and cookie data. A malicious website that is able to set arbitrary form and cookie data could prevent SeaMonkey from functioning properly. (CVE-2007-1362, CVE-2007-2869)

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

A flaw was found in the way SeaMonkey handled the addEventListener JavaScript method. A malicious website could use this method to access or modify sensitive data from another website. (CVE-2007-2870)

A flaw was found in the way SeaMonkey displayed certain web content. A malicious web page could generate content that would overlay user interface elements such as the hostname and security indicators, tricking users into thinking they are visiting a different site.
(CVE-2007-2871)

Users of SeaMonkey are advised to upgrade to these erratum packages, which contain SeaMonkey version 1.0.9 that corrects these issues.

Updated kdegraphics packages that fix a security issue in PDF handling 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 kdegraphics packages contain applications for the K Desktop Environment including kpdf, a PDF file viewer.

Maurycy Prodeus discovered an integer overflow flaw in the processing of PDF files. An attacker could create a malicious PDF file that would cause kpdf to crash or potentially execute arbitrary code when opened.
(CVE-2007-3387)

All users of kdegraphics should upgrade to these updated packages, which contain a backported patch to resolve this issue.

New Texinfo packages that fix various security vulnerabilities are now available.

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

Texinfo is a documentation system that can produce both online information and printed output from a single source file.

A buffer overflow flaw was found in Texinfo's texindex command. An attacker could construct a carefully crafted Texinfo file that could cause texindex to crash or possibly execute arbitrary code when opened. (CVE-2006-4810)

A flaw was found in the way Texinfo's texindex command creates temporary files. A local user could leverage this flaw to overwrite files the user executing texindex has write access to. (CVE-2005-3011)

Users of Texinfo should upgrade to these updated packages which contain backported patches and are not vulnerable to these issues.

Updated libxml2 packages that fix security issues are now available for Red Hat Enterprise Linux 2.1, 3, 4, and 5.

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

libxml2 is a library for parsing and manipulating XML files. It includes support for reading, modifying, and writing XML and HTML files.

An integer overflow flaw causing a heap-based buffer overflow was found in the libxml2 XML parser. If an application linked against libxml2 processed untrusted, malformed XML content, it could cause the application to crash or, possibly, execute arbitrary code.
(CVE-2008-4226)

A denial of service flaw was discovered in the libxml2 XML parser. If an application linked against libxml2 processed untrusted, malformed XML content, it could cause the application to enter an infinite loop.
(CVE-2008-4225)

Red Hat would like to thank Drew Yao of the Apple Product Security team for reporting these issues.

Users of libxml2 are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated samba packages that fix several security issues are now available for Red Hat Enterprise Linux 2.1 and 3.

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

Samba is a suite of programs used by machines to share files, printers, and other information.

A buffer overflow flaw was found in the way Samba creates NetBIOS replies. If a Samba server is configured to run as a WINS server, a remote unauthenticated user could cause the Samba server to crash or execute arbitrary code. (CVE-2007-5398)

A heap-based buffer overflow flaw was found in the way Samba authenticates users. A remote unauthenticated user could trigger this flaw to cause the Samba server to crash. Careful analysis of this flaw has determined that arbitrary code execution is not possible, and under most circumstances will not result in a crash of the Samba server. (CVE-2007-4572)

Red Hat would like to thank Alin Rad Pop of Secunia Research, and the Samba developers for responsibly disclosing these issues.

Users of Samba are advised to ugprade to these updated packages, which contain backported patches to resolve these issues.

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.

A cross-site scripting flaw was found in the way Firefox handled the jar: URI scheme. It was possible for a malicious website to leverage this flaw and conduct a cross-site scripting attack against a user running Firefox. (CVE-2007-5947)

Several flaws were found in the way Firefox processed certain malformed web content. A webpage containing malicious content could cause Firefox to crash, or potentially execute arbitrary code as the user running Firefox. (CVE-2007-5959)

A race condition existed when Firefox set the 'window.location' property for a webpage. This flaw could allow a webpage to set an arbitrary Referer header, which may lead to a Cross-site Request Forgery (CSRF) attack against websites that rely only on the Referer header for protection. (CVE-2007-5960)

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

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

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.

Several flaws were found in the way Firefox processes certain malformed JavaScript code. A malicious web page could cause the execution of JavaScript code in such a way that could cause Firefox to crash or execute arbitrary code as the user running Firefox.
(CVE-2006-5463, CVE-2006-5747, CVE-2006-5748)

Several flaws were found in the way Firefox renders web pages. A malicious web page could cause the browser to crash or possibly execute arbitrary code as the user running Firefox. (CVE-2006-5464)

A flaw was found in the way Firefox verifies RSA signatures. For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library.
Firefox as shipped trusts several root Certificate Authorities that use exponent 3. An attacker could have created a carefully crafted SSL certificate which be incorrectly trusted when their site was visited by a victim. This flaw was previously thought to be fixed in Firefox 1.5.0.7, however Ulrich Kuehn discovered the fix was incomplete (CVE-2006-5462)

Users of Firefox are advised to upgrade to these erratum packages, which contain Firefox version 1.5.0.8 that corrects these issues.

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

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

Ruby is an interpreted scripting language for object-oriented programming.

A flaw was discovered in the way Ruby's CGI module handles certain HTTP requests. If a remote attacker sends a specially crafted request, it is possible to cause the ruby CGI script to enter an infinite loop, possibly causing a denial of service. (CVE-2006-6303)

An SSL certificate validation flaw was discovered in several Ruby Net modules. The libraries were not checking the requested host name against the common name (CN) in the SSL server certificate, possibly allowing a man in the middle attack. (CVE-2007-5162, CVE-2007-5770)

Users of Ruby should upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated pcre packages that correct two security flaws are now available for Red Hat Enterprise Linux 4.

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

PCRE is a Perl-compatible regular expression library.

Multiple flaws were found in the way pcre handles certain malformed regular expressions. If an application linked against pcre, such as Konqueror, parses a malicious regular expression, it may be possible to run arbitrary code as the user running the application.
(CVE-2007-1660)

Users of pcre are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Red Hat would like to thank Tavis Ormandy and Will Drewry for properly disclosing these issues.

Updated cups packages that fix several security issues are now available for Red Hat Enterprise Linux 3.

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

The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX(R) operating systems.

Alin Rad Pop discovered a flaw in the handling of PDF files. An attacker could create a malicious PDF file that would cause CUPS to crash or potentially execute arbitrary code when printed.
(CVE-2007-5393)

Alin Rad Pop discovered a flaw in in the way CUPS handles certain IPP tags. A remote attacker who is able to connect to the IPP TCP port could send a malicious request causing the CUPS daemon to crash.
(CVE-2007-4351)

A flaw was found in the way CUPS handled SSL negotiation. A remote attacker capable of connecting to the CUPS daemon could cause CUPS to crash. (CVE-2007-4045)

All CUPS users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated cups packages that fix several security issues 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 Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX(R) operating systems.

Alin Rad Pop discovered several flaws in the handling of PDF files. An attacker could create a malicious PDF file that would cause CUPS to crash or potentially execute arbitrary code when printed.
(CVE-2007-4352, CVE-2007-5392, CVE-2007-5393)

Alin Rad Pop discovered a flaw in in the way CUPS handles certain IPP tags. A remote attacker who is able to connect to the IPP TCP port could send a malicious request causing the CUPS daemon to crash.
(CVE-2007-4351)

A flaw was found in the way CUPS handled SSL negotiation. A remote attacker capable of connecting to the CUPS daemon could cause CUPS to crash. (CVE-2007-4045)

All CUPS users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated openssh packages that fix an authentication flaw are now available for Red Hat Enterprise Linux 3 and 4.

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. This package includes the core files necessary for both the OpenSSH client and server.

An authentication flaw was found in OpenSSH's privilege separation monitor. If it ever becomes possible to alter the behavior of the unprivileged process when OpenSSH is using privilege separation, an attacker may then be able to login without possessing proper credentials. (CVE-2006-5794)

Please note that this flaw by itself poses no direct threat to OpenSSH users. Without another security flaw that could allow an attacker to alter the behavior of OpenSSH's unprivileged process, this flaw cannot be exploited. There are currently no known flaws to exploit this behavior. However, we have decided to issue this erratum to fix this flaw to reduce the security impact if an unprivileged process flaw is ever found.

Users of openssh should upgrade to these updated packages, which contain a backported patch to resolve this issue.

Updated kernel packages that resolve several security issues and fix various 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.

* a flaw was found in the Linux kernel's Direct-IO implementation.
This could have allowed a local unprivileged user to cause a denial of service. (CVE-2007-6716, Important)

* when running ptrace in 31-bit mode on an IBM S/390 or IBM System z kernel, a local unprivileged user could cause a denial of service by reading from or writing into a padding area in the user_regs_struct32 structure. (CVE-2008-1514, Important)

* the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could have allowed a local unprivileged user to obtain access to privileged information.
(CVE-2008-4210, Important)

* Tobias Klein reported a missing check in the Linux kernel's Open Sound System (OSS) implementation. This deficiency could have led to an information leak. (CVE-2008-3272, Moderate)

* a potential denial of service attack was discovered in the Linux kernel's PWC USB video driver. A local unprivileged user could have used this flaw to bring the kernel USB subsystem into the busy-waiting state. (CVE-2007-5093, Low)

* the ext2 and ext3 file systems code failed to properly handle corrupted data structures, leading to a possible local denial of service issue when read or write operations were performed.
(CVE-2008-3528, Low)

In addition, these updated packages fix the following bugs :

* when using the CIFS 'forcedirectio' option, appending to an open file on a CIFS share resulted in that file being overwritten with the data to be appended.

* a kernel panic occurred when a device with PCI ID 8086:10c8 was present on a system with a loaded ixgbe driver.

* due to an aacraid driver regression, the kernel failed to boot when trying to load the aacraid driver and printed the following error message: 'aac_srb: aac_fib_send failed with status: 8195'.

* due to an mpt driver regression, when RAID 1 was configured on Primergy systems with an LSI SCSI IME 53C1020/1030 controller, the kernel panicked during boot.

* the mpt driver produced a large number of extraneous debugging messages when performing a 'Host reset' operation.

* due to a regression in the sym driver, the kernel panicked when a SCSI hot swap was performed using MCP18 hardware.

* all cores on a multi-core system now scale their frequencies in accordance with the policy set by the system's CPU frequency governor.

* the netdump subsystem suffered from several stability issues. These are addressed in this updated kernel.

* under certain conditions, the ext3 file system reported a negative count of used blocks.

* reading /proc/self/mem incorrectly returned 'Invalid argument' instead of 'input/output error' due to a regression.

* under certain conditions, the kernel panicked when a USB device was removed while the system was busy accessing the device.

* a race condition in the kernel could have led to a kernel crash during the creation of a new process.

All Red Hat Enterprise Linux 4 Users should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated kdegraphics packages that fix several security issues 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 kdegraphics packages contain applications for the K Desktop Environment. This includes kpdf, a PDF file viewer.

Alin Rad Pop discovered several flaws in the handling of PDF files. An attacker could create a malicious PDF file that would cause kpdf to crash, or potentially execute arbitrary code when opened.
(CVE-2007-4352, CVE-2007-5392, CVE-2007-5393)

All kdegraphics users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated PHP packages that fix a security issue are now available.

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

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

The Hardened-PHP Project discovered an overflow in the PHP htmlentities() and htmlspecialchars() routines. If a PHP script used the vulnerable functions to parse UTF-8 data, a remote attacker sending a carefully crafted request could trigger the overflow and potentially execute arbitrary code as the 'apache' user.
(CVE-2006-5465)

Users of PHP should upgrade to these updated packages which contain a backported patch to correct this issue.

ID	Name	Severity
40344	CentOS 3 / 5 : libtiff (CESA-2009:1159)	high
39801	CentOS 3 : dhcp (CESA-2009:1154)	critical
39585	CentOS 3 : seamonkey (CESA-2009:1134)	high
39524	CentOS 3 : kdelibs (CESA-2009:1128)	high
39523	CentOS 3 : net-snmp (CESA-2009:1124)	medium
39438	CentOS 3 : httpd (CESA-2009:1108)	high
39424	CentOS 3 : cscope (CESA-2009:1101)	high
39423	CentOS 3 / 5 : wireshark (CESA-2009:1100)	critical
39373	CentOS 3 : seamonkey (CESA-2009:1096)	high
39303	CentOS 3 / 4 : cups (CESA-2009:1083)	medium
38930	CentOS 3 / 5 : squirrelmail (CESA-2009:1066)	medium
38903	CentOS 3 / 4 / 5 : acpid (CESA-2009:0474)	medium
38902	CentOS 4 : kernel (CESA-2009:0459)	medium
38901	CentOS 4 : gpdf (CESA-2009:0458)	high
38900	CentOS 4 / 5 : libwmf (CESA-2009:0457)	high
38899	CentOS 3 / 4 : seamonkey (CESA-2009:0437)	medium
38898	CentOS 4 / 5 : kdegraphics (CESA-2009:0431)	high
38897	CentOS 4 / 5 : cups (CESA-2009:0429)	high
38896	CentOS 4 / 5 : device-mapper-multipath (CESA-2009:0411)	high
38895	CentOS 4 : NetworkManager (CESA-2009:0362)	medium
38894	CentOS 4 : evolution / evolution-data-server (CESA-2009:0355)	high
38893	CentOS 4 : evolution-data-server (CESA-2009:0354)	high
38892	CentOS 4 : libsoup (CESA-2009:0344)	high
38891	CentOS 4 / 5 : thunderbird (CESA-2009:0258)	critical
38868	CentOS 3 : pidgin (CESA-2009:1059)	high
38867	CentOS 3 / 4 : freetype (CESA-2009:0329)	critical
38721	CentOS 3 / 4 / 5 : pango (CESA-2009:0476)	medium
38130	CentOS 3 / 4 / 5 : qt (CESA-2007:0721)	medium
38103	CentOS 4 / 5 : thunderbird (CESA-2007:0401)	high
38001	CentOS 4 : xpdf (CESA-2007:1029)	high
37953	CentOS 4 : kernel (CESA-2007:0939)	medium
37859	CentOS 3 : xpdf (CESA-2007:1030)	high
37834	CentOS 3 : tetex (CESA-2007:1028)	high
37794	CentOS 3 / 4 : vim (CESA-2008:0617)	high
37788	CentOS 3 / 4 / 5 : perl (CESA-2007:0966)	high
37778	CentOS 3 / 4 : seamonkey (CESA-2007:0402)	high
37749	CentOS 4 / 5 : kdegraphics (CESA-2007:0729)	medium
37714	CentOS 3 / 4 : texinfo (CESA-2006:0727)	medium
37692	CentOS 3 / 4 / 5 : libxml2 (CESA-2008:0988)	critical
37627	CentOS 3 : samba (CESA-2007:1013)	high
37591	CentOS 4 : firefox (CESA-2007:1082)	high
37577	CentOS 4 : firefox (CESA-2006:0733)	high
37552	CentOS 4 : ruby (CESA-2007:0961)	medium
37507	CentOS 4 : pcre (CESA-2007:0968)	medium
37449	CentOS 3 : cups (CESA-2007:1023)	critical
37428	CentOS 4 : cups (CESA-2007:1022)	critical
37366	CentOS 3 / 4 : openssh (CESA-2006:0738)	high
37341	CentOS 4 : kernel (CESA-2008:0972)	medium
37318	CentOS 4 : kdegraphics (CESA-2007:1024)	high
37281	CentOS 3 / 4 : php (CESA-2006:0730)	high

Detections

Analytics

CentOS Local Security Checks Family for Nessus

high

critical

high

high

medium

high

high

critical

high

medium

medium

medium

medium

high

high

medium

high

high

high

medium

high

high

high

critical

high

critical

medium

medium

high

high

medium

high

high

high

high

high

medium

medium

critical

high

high

high

medium

medium

critical

critical

high

medium

high

high