10 - RHSA-2012:0516

Problem Description:

An updated thunderbird package that fixes multiple security issues is now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

A flaw was found in Sanitiser for OpenType (OTS), used by Thunderbird to help prevent potential exploits in malformed OpenType fonts. Malicious content could cause Thunderbird to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-3062)

Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2012-0467, CVE-2012-0468, CVE-2012-0469)

Content containing a malicious Scalable Vector Graphics (SVG) image file could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2012-0470)

A flaw was found in the way Thunderbird used its embedded Cairo library to render certain fonts. Malicious content could cause Thunderbird to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2012-0472)

A flaw was found in the way Thunderbird rendered certain images using WebGL. Malicious content could cause Thunderbird to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2012-0478)

A cross-site scripting (XSS) flaw was found in the way Thunderbird handled certain multibyte character sets. Malicious content could cause Thunderbird to run JavaScript code with the permissions of different content. (CVE-2012-0471)

A flaw was found in the way Thunderbird rendered certain graphics using WebGL. Malicious content could cause Thunderbird to crash. (CVE-2012-0473)

A flaw in the built-in feed reader in Thunderbird allowed the Website field to display the address of different content than the content the user was visiting. An attacker could use this flaw to conceal a malicious URL, possibly tricking a user into believing they are viewing a trusted site, or allowing scripts to be loaded from the attacker's site, possibly leading to cross-site scripting (XSS) attacks. (CVE-2012-0474)

A flaw was found in the way Thunderbird decoded the ISO-2022-KR and ISO-2022-CN character sets. Malicious content could cause Thunderbird to run JavaScript code with the permissions of different content. (CVE-2012-0477)

A flaw was found in the way the built-in feed reader in Thunderbird handled RSS and Atom feeds. Invalid RSS or Atom content loaded over HTTPS caused Thunderbird to display the address of said content, but not the content. The previous content continued to be displayed. An attacker could use this flaw to perform phishing attacks, or trick users into thinking they are visiting the site reported by the Website field, when the page is actually content controlled by an attacker. (CVE-2012-0479)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Mateusz Jurczyk of the Google Security Team as the original reporter of CVE-2011-3062; Aki Helin from OUSPG as the original reporter of CVE-2012-0469; Atte Kettunen from OUSPG as the original reporter of CVE-2012-0470; wushi of team509 via iDefense as the original reporter of CVE-2012-0472; Ms2ger as the original reporter of CVE-2012-0478; Anne van Kesteren of Opera Software as the original reporter of CVE-2012-0471; Matias Juntunen as the original reporter of CVE-2012-0473; Jordi Chancel and Eddy Bordi, and Chris McGowen as the original reporters of CVE-2012-0474; Masato Kinugawa as the original reporter of CVE-2012-0477; and Jeroen van der Gun as the original reporter of CVE-2012-0479.

Note: All issues except CVE-2012-0470, CVE-2012-0472, and CVE-2011-3062 cannot be exploited by a specially-crafted HTML mail message as JavaScript is disabled by default for mail messages. It could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

4. Solution:

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 10.0.4 ESR, which corrects these issues. After installing the update, Thunderbird must be restarted for the changes to take effect.

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

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

815000 - CVE-2012-0467 CVE-2012-0468 Mozilla: Miscellaneous memory safety hazards (rv:12.0/ rv:10.0.4) (MFSA 2012-20) 815019 - CVE-2012-0469 Mozilla: use-after-free in IDBKeyRange (MFSA 2012-22) 815020 - CVE-2012-0470 Mozilla: Invalid frees causes heap corruption in gfxImageSurface (MFSA 2012-23) 815021 - CVE-2012-0471 Mozilla: Potential XSS via multibyte content processing errors (MFSA 2012-24) 815022 - CVE-2012-0472 Mozilla: Potential memory corruption during font rendering using cairo-dwrite (MFSA 2012-25) 815023 - CVE-2012-0473 Mozilla: WebGL.drawElements may read illegal video memory due to FindMaxUshortElement error (MFSA 2012-26) 815024 - CVE-2012-0474 Mozilla: Page load short-circuit can lead to XSS (MFSA 2012-27) 815026 - CVE-2012-0477 Mozilla: Potential XSS through ISO-2022-KR/ISO-2022-CN decoding issues (MFSA 2012-29) 815037 - CVE-2012-0478 Mozilla: Crash with WebGL content using textImage2D (MFSA 2012-30) 815042 - CVE-2011-3062 Mozilla: Off-by-one error in OpenType Sanitizer (MFSA 2012-31) 815044 - CVE-2012-0479 Mozilla: Potential site identity spoofing when loading RSS and Atom feeds (MFSA 2012-33)