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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed content.
Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2011-3101, CVE-2012-1937, CVE-2012-1938, CVE-2012-1939, CVE-2012-1940, CVE-2012-1941, CVE-2012-1946, CVE-2012-1947)

Note: CVE-2011-3101 only affected users of certain NVIDIA display drivers with graphics cards that have hardware acceleration enabled.

It was found that the Content Security Policy (CSP) implementation in Thunderbird no longer blocked Thunderbird inline event handlers.
Malicious content could possibly bypass intended restrictions if that content relied on CSP to protect against flaws such as cross-site scripting (XSS). (CVE-2012-1944)

If a web server hosted content that is stored on a Microsoft Windows share, or a Samba share, loading such content with Thunderbird could result in Windows shortcut files (.lnk) in the same share also being loaded. An attacker could use this flaw to view the contents of local files and directories on the victim's system. This issue also affected users opening content from Microsoft Windows shares, or Samba shares, that are mounted on their systems. (CVE-2012-1945)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Ken Russell of Google as the original reporter of CVE-2011-3101; Igor Bukanov, Olli Pettay, Boris Zbarsky, and Jesse Ruderman as the original reporters of CVE-2012-1937; Jesse Ruderman, Igor Bukanov, Bill McCloskey, Christian Holler, Andrew McCreight, and Brian Bondy as the original reporters of CVE-2012-1938;
Christian Holler as the original reporter of CVE-2012-1939; security researcher Abhishek Arya of Google as the original reporter of CVE-2012-1940, CVE-2012-1941, and CVE-2012-1947; security researcher Arthur Gerkis as the original reporter of CVE-2012-1946; security researcher Adam Barth as the original reporter of CVE-2012-1944; and security researcher Paul Stone as the original reporter of CVE-2012-1945.

Note: None of the issues in this advisory can be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 10.0.5 ESR, which corrects these issues.
After installing the update, Thunderbird must be restarted for the changes to take effect.

The remote Redhat Enterprise Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0710 advisory.

  - Mozilla: Miscellaneous memory safety hazards (rv:13.0/ rv:10.0.5) (MFSA 2012-34) (CVE-2011-3101,     CVE-2012-1937, CVE-2012-1938, CVE-2012-1939, CVE-2012-3105)

  - Mozilla: Buffer overflow and use-after-free issues found using Address Sanitizer (MFSA 2012-40)     (CVE-2012-1940, CVE-2012-1941, CVE-2012-1947)

  - Mozilla: Content Security Policy inline-script bypass (MFSA 2012-36) (CVE-2012-1944)

  - Mozilla: Information disclosure though Windows file shares and shortcut files (MFSA 2012-37)     (CVE-2012-1945)

  - Mozilla: Use-after-free while replacing/inserting a node in a document (MFSA 2012-38) (CVE-2012-1946)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated firefox packages that fix multiple security issues are 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.

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

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2011-3101, CVE-2012-1937, CVE-2012-1938, CVE-2012-1939, CVE-2012-1940, CVE-2012-1941, CVE-2012-1946, CVE-2012-1947)

Note: CVE-2011-3101 only affected users of certain NVIDIA display drivers with graphics cards that have hardware acceleration enabled.

It was found that the Content Security Policy (CSP) implementation in Firefox no longer blocked Firefox inline event handlers. A remote attacker could use this flaw to possibly bypass a web application's intended restrictions, if that application relied on CSP to protect against flaws such as cross-site scripting (XSS). (CVE-2012-1944)

If a web server hosted HTML files that are stored on a Microsoft Windows share, or a Samba share, loading such files with Firefox could result in Windows shortcut files (.lnk) in the same share also being loaded. An attacker could use this flaw to view the contents of local files and directories on the victim's system. This issue also affected users opening HTML files from Microsoft Windows shares, or Samba shares, that are mounted on their systems. (CVE-2012-1945)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 10.0.5 ESR. You can find a link to the Mozilla advisories in the References section of this erratum.

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Ken Russell of Google as the original reporter of CVE-2011-3101; Igor Bukanov, Olli Pettay, Boris Zbarsky, and Jesse Ruderman as the original reporters of CVE-2012-1937; Jesse Ruderman, Igor Bukanov, Bill McCloskey, Christian Holler, Andrew McCreight, and Brian Bondy as the original reporters of CVE-2012-1938;
Christian Holler as the original reporter of CVE-2012-1939; security researcher Abhishek Arya of Google as the original reporter of CVE-2012-1940, CVE-2012-1941, and CVE-2012-1947; security researcher Arthur Gerkis as the original reporter of CVE-2012-1946; security researcher Adam Barth as the original reporter of CVE-2012-1944; and security researcher Paul Stone as the original reporter of CVE-2012-1945.

All Firefox users should upgrade to these updated packages, which contain Firefox version 10.0.5 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

The remote Redhat Enterprise Linux 5 / 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2012:0715 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Several flaws were found in the processing of malformed content. Malicious     content could cause Thunderbird to crash or, potentially, execute arbitrary     code with the privileges of the user running Thunderbird. (CVE-2011-3101,     CVE-2012-1937, CVE-2012-1938, CVE-2012-1939, CVE-2012-1940, CVE-2012-1941,     CVE-2012-1946, CVE-2012-1947)

    Note: CVE-2011-3101 only affected users of certain NVIDIA display drivers     with graphics cards that have hardware acceleration enabled.

    It was found that the Content Security Policy (CSP) implementation in     Thunderbird no longer blocked Thunderbird inline event handlers. Malicious     content could possibly bypass intended restrictions if that content relied     on CSP to protect against flaws such as cross-site scripting (XSS).
    (CVE-2012-1944)

    If a web server hosted content that is stored on a Microsoft Windows share,     or a Samba share, loading such content with Thunderbird could result in     Windows shortcut files (.lnk) in the same share also being loaded. An     attacker could use this flaw to view the contents of local files and     directories on the victim's system. This issue also affected users opening     content from Microsoft Windows shares, or Samba shares, that are mounted     on their systems. (CVE-2012-1945)

    Red Hat would like to thank the Mozilla project for reporting these issues.
    Upstream acknowledges Ken Russell of Google as the original reporter of     CVE-2011-3101; Igor Bukanov, Olli Pettay, Boris Zbarsky, and Jesse Ruderman     as the original reporters of CVE-2012-1937; Jesse Ruderman, Igor Bukanov,     Bill McCloskey, Christian Holler, Andrew McCreight, and Brian Bondy as the     original reporters of CVE-2012-1938; Christian Holler as the original     reporter of CVE-2012-1939; security researcher Abhishek Arya of Google as     the original reporter of CVE-2012-1940, CVE-2012-1941, and CVE-2012-1947;
    security researcher Arthur Gerkis as the original reporter of     CVE-2012-1946; security researcher Adam Barth as the original reporter of     CVE-2012-1944; and security researcher Paul Stone as the original reporter     of CVE-2012-1945.

    Note: None of the issues in this advisory can be exploited by a     specially-crafted HTML mail message as JavaScript is disabled by default     for mail messages. They could be exploited another way in Thunderbird, for     example, when viewing the full remote content of an RSS feed.

    All Thunderbird users should upgrade to this updated package, which     contains Thunderbird version 10.0.5 ESR, which corrects these issues. After     installing the update, Thunderbird must be restarted for the changes to     take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
59412	CentOS 5 / 6 : thunderbird (CESA-2012:0715)	Nessus	CentOS Local Security Checks	6/8/2012	1/4/2021	critical
59383	RHEL 5 / 6 : firefox (RHSA-2012:0710)	Nessus	Red Hat Local Security Checks	6/6/2012	4/21/2024	medium
59388	CentOS 5 / 6 : firefox (CESA-2012:0710)	Nessus	CentOS Local Security Checks	6/7/2012	1/4/2021	critical
59392	RHEL 5 / 6 : thunderbird (RHSA-2012:0715)	Nessus	Red Hat Local Security Checks	6/7/2012	11/4/2024	medium

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