RHSA-2008:0616 - Security Advisory

Topic

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

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

Description

Mozilla Thunderbird is a standalone mail and newsgroup client.

Multiple flaws were found in the processing of malformed JavaScript
content. An HTML mail containing such malicious content could cause
Thunderbird to crash or, potentially, execute arbitrary code as the user
running Thunderbird. (CVE-2008-2801, CVE-2008-2802, CVE-2008-2803)

Several flaws were found in the processing of malformed HTML content. An
HTML mail containing malicious content could cause Thunderbird to crash or,
potentially, execute arbitrary code as the user running Thunderbird.
(CVE-2008-2785, CVE-2008-2798, CVE-2008-2799, CVE-2008-2811)

Several flaws were found in the way malformed HTML content was displayed.
An HTML mail containing specially-crafted content could, potentially, trick
a Thunderbird user into surrendering sensitive information. (CVE-2008-2800)

Two local file disclosure flaws were found in Thunderbird. An HTML mail
containing malicious content could cause Thunderbird to reveal the contents
of a local file to a remote attacker. (CVE-2008-2805, CVE-2008-2810)

A flaw was found in the way a malformed .properties file was processed by
Thunderbird. A malicious extension could read uninitialized memory,
possibly leaking sensitive data to the extension. (CVE-2008-2807)

A flaw was found in the way Thunderbird escaped a listing of local file
names. If a user could be tricked into listing a local directory containing
malicious file names, arbitrary JavaScript could be run with the
permissions of the user running Thunderbird. (CVE-2008-2808)

A flaw was found in the way Thunderbird displayed information about
self-signed certificates. It was possible for a self-signed certificate to
contain multiple alternate name entries, which were not all displayed to
the user, allowing them to mistakenly extend trust to an unknown site.
(CVE-2008-2809)

Note: JavaScript support is disabled by default in Thunderbird. The above
issues are not exploitable unless JavaScript is enabled.

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

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.2 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.6 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 452204 - CVE-2008-2785 mozilla: CSS reference counter overflow (ZDI-CAN-349)
• BZ - 452597 - CVE-2008-2798 Firefox malformed web content flaws
• BZ - 452598 - CVE-2008-2799 Firefox javascript arbitrary code execution
• BZ - 452599 - CVE-2008-2800 Firefox XSS attacks
• BZ - 452600 - CVE-2008-2802 Firefox arbitrary JavaScript code execution
• BZ - 452602 - CVE-2008-2803 Firefox javascript arbitrary code execution
• BZ - 452604 - CVE-2008-2805 Firefox arbitrary file disclosure
• BZ - 452605 - CVE-2008-2801 Firefox arbitrary signed JAR code execution
• BZ - 452709 - CVE-2008-2807 Firefox .properties memory leak
• BZ - 452710 - CVE-2008-2808 Firefox file location escaping flaw
• BZ - 452711 - CVE-2008-2809 Firefox self signed certificate flaw
• BZ - 452712 - CVE-2008-2810 Firefox arbitrary file disclosure
• BZ - 453007 - CVE-2008-2811 Firefox block reflow flaw

CVEs

• CVE-2008-2808
• CVE-2008-2809
• CVE-2008-2799
• CVE-2008-2798
• CVE-2008-2810
• CVE-2008-2811
• CVE-2008-2803
• CVE-2008-2802
• CVE-2008-2801
• CVE-2008-2800
• CVE-2008-2807
• CVE-2008-2805
• CVE-2008-2785

References

• http://www.redhat.com/security/updates/classification/#critical