From Red Hat Security Advisory 2006:0667 :

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

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

The gzip package contains the GNU gzip data compression program.

Tavis Ormandy of the Google Security Team discovered two denial of service flaws in the way gzip expanded archive files. If a victim expanded a specially crafted archive, it could cause the gzip executable to hang or crash. (CVE-2006-4334, CVE-2006-4338)

Tavis Ormandy of the Google Security Team discovered several code execution flaws in the way gzip expanded archive files. If a victim expanded a specially crafted archive, it could cause the gzip executable to crash or execute arbitrary code. (CVE-2006-4335, CVE-2006-4336, CVE-2006-4337)

Users of gzip should upgrade to these updated packages, which contain a backported patch and is not vulnerable to these issues.

From Red Hat Security Advisory 2006:0665 :

Updated X.org packages that fix a security issue 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.

X.org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

iDefense reported two integer overflow flaws in the way the X.org server processed CID font files. A malicious authorized client could exploit this issue to cause a denial of service (crash) or potentially execute arbitrary code with root privileges on the X.org server.
(CVE-2006-3739, CVE-2006-3740)

Users of X.org should upgrade to these updated packages, which contain a backported patch and is not vulnerable to this issue.

From Red Hat Security Advisory 2006:0663 :

Updated ncompress packages that address a security issue and fix bugs are now available.

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

The ncompress package contains file compression and decompression utilities, which are compatible with the original UNIX compress utility (.Z file extensions).

Tavis Ormandy of the Google Security Team discovered a lack of bounds checking in ncompress. An attacker could create a carefully crafted file that could execute arbitrary code if uncompressed by a victim.
(CVE-2006-1168)

In addition, two bugs that affected Red Hat Enterprise Linux 4 ncompress packages were fixed :

* The display statistics and compression results in verbose mode were not shown when operating on zero length files.

* An attempt to compress zero length files resulted in an unexpected return code.

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

Updated OpenSSL packages are now available to correct several security issues. 

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

The OpenSSL toolkit provides support for secure communications between machines.  OpenSSL includes a certificate management tool and shared libraries which provide various cryptographic algorithms and protocols. 

These vulnerabilities can affect applications which use OpenSSL to parse ASN.1 data from untrusted sources, including SSL servers which enable client authentication and S/MIME applications.

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

Note: After installing this update, users are advised to either restart all services that use OpenSSL or restart their system.


From Red Hat Security Advisory 2006:0695 :

Tavis Ormandy and Will Drewry of the Google Security Team discovered a buffer overflow in the SSL_get_shared_ciphers() utility function. An attacker could send a list of ciphers to an application that used this function and overrun a buffer (CVE-2006-3738). Few applications make use of this vulnerable function and generally it is used only when applications are compiled for debugging.

Tavis Ormandy and Will Drewry of the Google Security Team discovered a flaw in the SSLv2 client code. When a client application used OpenSSL to create an SSLv2 connection to a malicious server, that server could cause the client to crash. (CVE-2006-4343)

Dr S. N. Henson of the OpenSSL core team and Open Network Security recently developed an ASN.1 test suite for NISCC (www.niscc.gov.uk) which uncovered denial of service vulnerabilities :

* Certain public key types can take disproportionate amounts of time to process, leading to a denial of service. (CVE-2006-2940)

* During parsing of certain invalid ASN.1 structures an error condition was mishandled. This can result in an infinite loop which consumed system memory (CVE-2006-2937). This issue does not affect the OpenSSL version distributed in Red Hat Enterprise Linux 2.1.


From Red Hat Security Advisory 2006:0661 :

Daniel Bleichenbacher recently described an attack on PKCS #1 v1.5 signatures. Where an RSA key with exponent 3 is used it may be possible for an attacker to forge a PKCS #1 v1.5 signature that would be incorrectly verified by implementations that do not check for excess data in the RSA exponentiation result of the signature.

The Google Security Team discovered that OpenSSL is vulnerable to this attack. This issue affects applications that use OpenSSL to verify X.509 certificates as well as other uses of PKCS #1 v1.5.
(CVE-2006-4339)

This errata also resolves a problem where a customized ca-bundle.crt file was overwritten when the openssl package was upgraded.

From Red Hat Security Advisory 2006:0648 :

Updated kdegraphics packages that fix several security flaws in kfax are now available for Red Hat Enterprise Linux 2.1, and 3.

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

The kdegraphics package contains graphics applications for the K Desktop Environment.

Tavis Ormandy of Google discovered a number of flaws in libtiff during a security audit. The kfax application contains a copy of the libtiff code used for parsing TIFF files and is therefore affected by these flaws. An attacker who has the ability to trick a user into opening a malicious TIFF file could cause kfax to crash or possibly execute arbitrary code. (CVE-2006-3459, CVE-2006-3460, CVE-2006-3461, CVE-2006-3462, CVE-2006-3463, CVE-2006-3464, CVE-2006-3465)

Red Hat Enterprise Linux 4 is not vulnerable to these issues as kfax uses the shared libtiff library which has been fixed in a previous update.

Users of kfax should upgrade to these updated packages, which contain backported patches and are not vulnerable to this issue.

From Red Hat Security Advisory 2006:0633 :

Updated ImageMagick packages that fix several security issues are now available.

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

ImageMagick(TM) is an image display and manipulation tool for the X Window System that can read and write multiple image formats.

Tavis Ormandy discovered several integer and buffer overflow flaws in the way ImageMagick decodes XCF, SGI, and Sun bitmap graphic files. An attacker could execute arbitrary code on a victim's machine if they were able to trick the victim into opening a specially crafted image file. (CVE-2006-3743, CVE-2006-3744, CVE-2006-4144)

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

From Red Hat Security Advisory 2006:0619 :

Updated Apache httpd packages that correct security issues and resolve bugs 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.

The Apache HTTP Server is a popular Web server available for free.

A bug was found in Apache where an invalid Expect header sent to the server was returned to the user in an unescaped error message. This could allow an attacker to perform a cross-site scripting attack if a victim was tricked into connecting to a site and sending a carefully crafted Expect header. (CVE-2006-3918)

While a web browser cannot be forced to send an arbitrary Expect header by a third-party attacker, it was recently discovered that certain versions of the Flash plugin can manipulate request headers.
If users running such versions can be persuaded to load a web page with a malicious Flash applet, a cross-site scripting attack against the server may be possible.

On Red Hat Enterprise Linux 3 and 4 systems, due to an unrelated issue in the handling of malformed Expect headers, the page produced by the cross-site scripting attack will only be returned after a timeout expires (2-5 minutes by default) if not first canceled by the user.

Users of httpd should update to these erratum packages, which contain a backported patch to correct these issues.

Updated kernel packages that fix security issues are now available. 

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

The Linux kernel handles the basic functions of the operating system. 

These new kernel packages contain fixes for the security issues described below :


From Red Hat Security Advisory 2006-0617 :

* a flaw in the proc file system that allowed a local user to use a suid-wrapper for scripts to gain root privileges (CVE-2006-3626, Important)

* a flaw in the SCTP implementation that allowed a local user to cause a denial of service (panic) or to possibly gain root privileges (CVE-2006-3745, Important)

* a flaw in NFS exported ext2/ext3 partitions when handling invalid inodes that allowed a remote authenticated user to cause a denial of service (filesystem panic) (CVE-2006-3468, Important)

* a flaw in the restore_all code path of the 4/4GB split support of non-hugemem kernels that allowed a local user to cause a denial of service (panic) (CVE-2006-2932, Important)

* a flaw in IPv4 netfilter handling for the unlikely use of SNMP NAT processing that allowed a remote user to cause a denial of service (crash) or potential memory corruption (CVE-2006-2444, Moderate)

* a flaw in the DVD handling of the CDROM driver that could be used together with a custom built USB device to gain root privileges (CVE-2006-2935, Moderate)

* a flaw in the handling of O_DIRECT writes that allowed a local user to cause a denial of service (memory consumption) (CVE-2004-2660, Low)

* a flaw in the SCTP chunk length handling that allowed a remote user to cause a denial of service (crash) (CVE-2006-1858, Low)

* a flaw in the input handling of the ftdi_sio driver that allowed a local user to cause a denial of service (memory consumption) (CVE-2006-2936, Low)

In addition a bugfix was added to enable a clean reboot for the IBM Pizzaro machines.

Red Hat would like to thank Wei Wang of McAfee Avert Labs and Kirill Korotaev for reporting issues fixed in this erratum.


From Red Hat Security Advisory ELSA-2006-0689 :

* a flaw in the SCTP support that allowed a local user to cause a denial of service (crash) with a specific SO_LINGER value.
(CVE-2006-4535, Important)

* a flaw in the hugepage table support that allowed a local user to cause a denial of service (crash). (CVE-2005-4811, Important)

* a flaw in the mprotect system call that allowed setting write permission for a read-only attachment of shared memory.
(CVE-2006-2071, Moderate)

* a flaw in HID0[31] (en_attn) register handling on PowerPC 970 systems that allowed a local user to cause a denial of service.
(crash) (CVE-2006-4093, Moderate)

* a flaw in the perfmon support of Itanium systems that allowed a local user to cause a denial of service by consuming all file descriptors. (CVE-2006-3741, Moderate)

* a flaw in the ATM subsystem. On systems with installed ATM hardware and configured ATM support, a remote user could cause a denial of service (panic) by accessing socket buffers memory after freeing them.
(CVE-2006-4997, Moderate)

* a flaw in the DVB subsystem. On systems with installed DVB hardware and configured DVB support, a remote user could cause a denial of service (panic) by sending a ULE SNDU packet with length of 0.
(CVE-2006-4623, Low)

* an information leak in the network subsystem that possibly allowed a local user to read sensitive data from kernel memory. (CVE-2006-0039, Low)

In addition, two bugfixes for the IPW-2200 wireless driver were included. The first one ensures that wireless management applications correctly identify IPW-2200 controlled devices, while the second fix ensures that DHCP requests using the IPW-2200 operate correctly.

Red Hat would like to thank Olof Johansson, Stephane Eranian and Solar Designer for reporting issues fixed in this erratum.

From Red Hat Security Advisory 2006:0615 :

Updated GnuPG packages that fix a security issue is now available.

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

GnuPG is a utility for encrypting data and creating digital signatures.

An integer overflow flaw was found in GnuPG. An attacker could create a carefully crafted message packet with a large length that could cause GnuPG to crash or possibly overwrite memory when opened.
(CVE-2006-3746)

All users of GnuPG are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Updated ruby packages that fix security issues are now available. 

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. 

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


From Red Hat Security Advisory 2006:0604 :

A number of flaws were found in the safe-level restrictions in Ruby.  It was possible for an attacker to create a carefully crafted malicious script that can allow the bypass of certain safe-level restrictions. (CVE-2006-3694)


From Red Hat Security Advisory 2006:0729 :

A flaw was discovered in the way Ruby's CGI module handles certain multipart/form-data MIME data.  If a remote attacker sends a specially crafted multipart-form-data request, it is possible to cause the ruby CGI script to enter an infinite loop, causing a denial of service. (CVE-2006-5467)

From Red Hat Security Advisory 2006:0603 :

Updated libtiff packages that fix several security flaws are now available for Red Hat Enterprise Linux.

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

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

Tavis Ormandy of Google discovered a number of flaws in libtiff during a security audit. An attacker could create a carefully crafted TIFF file in such a way that it was possible to cause an application linked with libtiff to crash or possibly execute arbitrary code.
(CVE-2006-3459, CVE-2006-3460, CVE-2006-3461, CVE-2006-3462, CVE-2006-3463, CVE-2006-3464, CVE-2006-3465)

All users are advised to upgrade to these updated packages, which contain backported fixes for these issues.

From Red Hat Security Advisory 2006:0600 :

Updated mailman packages that fix 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.

Mailman is a program used to help manage email discussion lists.

A flaw was found in the way Mailman handled MIME multipart messages.
An attacker could send a carefully crafted MIME multipart email message to a mailing list run by Mailman which caused that particular mailing list to stop working. (CVE-2006-2941)

Several cross-site scripting (XSS) issues were found in Mailman. An attacker could exploit these issues to perform cross-site scripting attacks against the Mailman administrator. (CVE-2006-3636)

Red Hat would like to thank Barry Warsaw for disclosing these vulnerabilities.

Users of Mailman should upgrade to these updated packages, which contain backported patches to correct this issue.

From Red Hat Security Advisory 2006:0576 :

Updated kdebase packages that resolve a security issue are now available.

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

The kdebase packages provide the core applications for KDE, the K Desktop Environment.

A flaw was found in KDE where the kdesktop_lock process sometimes failed to terminate properly. This issue could either block the user's ability to manually lock the desktop or prevent the screensaver to activate, both of which could have a security impact for users who rely on these functionalities. (CVE-2006-2933)

Please note that this issue only affected Red Hat Enterprise Linux 3.

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

ID	Name	Severity
67408	Oracle Linux 3 / 4 : gzip (ELSA-2006-0667)	high
67407	Oracle Linux 4 : xorg-x11 (ELSA-2006-0665)	high
67406	Oracle Linux 3 / 4 : ncompress (ELSA-2006-0663)	high
67405	Oracle Linux 4 : openssl (ELSA-2006-0695 / ELSA-2006-0661)	critical
67404	Oracle Linux 3 : kdegraphics (ELSA-2006-0648)	high
67403	Oracle Linux 4 : ImageMagick (ELSA-2006-0633)	medium
67402	Oracle Linux 3 / 4 : httpd (ELSA-2006-0619)	medium
67401	Oracle Linux 4 : kernel (ELSA-2006-0617 / ELSA-2006-0689)	high
67400	Oracle Linux 4 : gnupg (ELSA-2006-0615)	medium
67399	Oracle Linux 3 / 4 : ruby (ELSA-2006-0604 / ELSA-2006-0729)	medium
67398	Oracle Linux 3 : libtiff (ELSA-2006-0603)	high
67397	Oracle Linux 3 / 4 : mailman (ELSA-2006-0600)	medium
67396	Oracle Linux 3 : kdebase (ELSA-2006-0576)	medium

Detections

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