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(Red Hat Issues Fix) Mozilla Thunderbird Multiple Bugs Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID: 1026125|
SecurityTracker URL: http://securitytracker.com/id/1026125
CVE-2011-2372, CVE-2011-2995, CVE-2011-2998, CVE-2011-2999, CVE-2011-3000
(Links to External Site)
Date: Sep 29 2011
Execution of arbitrary code via network, User access via network|
Fix Available: Yes Vendor Confirmed: Yes |
Version(s): prior to 7.0|
Several vulnerabilities were reported in Mozilla Thunderbird. A remote user can cause arbitrary code to be executed on the target user's system.|
A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2011-2995, CVE-2011-2996, CVE-2011-2997]. The code will run with the privileges of the target user.
A remote user can return multiple Location headers to cause Thunderbird to process the wrong location header [CVE-2011-3000].
A remote user can cause the target user to download and execute arbitrary code [CVE-2011-2372] or install an arbitrary extension [CVE-2011-3001] while holding down the Enter key.
A remote user can exploit a flaw in the YARR regular expression library to execute arbitrary code [CVE-2011-3232].
A specially crafted '.ogg' file can trigger a use-after-free memory error and execute arbitrary code [CVE-2011-3005].
Benjamin Smedberg, Bob Clary, Jesse Ruderman, Josh Aas, Andrew McCreight, Andreas Gal, Gary Kwong, Igor Bukanov, Jason Orendorff, Marcia Knous, Ian Graham of Citrix Online, Mariusz Mlynski, Aki Helin, and sczimmer reported these vulnerabilities.
A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.|
Red Hat has issued a fix for CVE-2011-2372, CVE-2011-2995, CVE-2011-2998, CVE-2011-2999, and CVE-2011-3000.|
The Red Hat advisory is available at:
Vendor URL: www.mozilla.org/security/announce/2011/mfsa2011-39.html (Links to External Site)
Access control error|
Linux (Red Hat Enterprise)|
This archive entry is a follow-up to the message listed below.|
Source Message Contents
Date: Wed, 28 Sep 2011 23:58:23 +0000|
Subject: [RHSA-2011:1342-01] Critical: thunderbird security update
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Red Hat Security Advisory
Synopsis: Critical: thunderbird security update
Advisory ID: RHSA-2011:1342-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1342.html
Issue date: 2011-09-28
CVE Names: CVE-2011-2372 CVE-2011-2995 CVE-2011-2998
An updated thunderbird package that fixes several security issues is now
available for Red Hat Enterprise Linux 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:
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
Mozilla Thunderbird is a standalone mail and newsgroup client.
Several flaws were found in the processing of malformed HTML content. An
HTML mail message containing malicious content could cause Thunderbird to
crash or, potentially, execute arbitrary code with the privileges of the
user running Thunderbird. (CVE-2011-2995)
A flaw was found in the way Thunderbird processed the "Enter" keypress
event. A malicious HTML mail message could present a download dialog while
the key is pressed, activating the default "Open" action. A remote attacker
could exploit this vulnerability by causing the mail client to open
malicious web content. (CVE-2011-2372)
A flaw was found in the way Thunderbird handled Location headers in
redirect responses. Two copies of this header with different values could
be a symptom of a CRLF injection attack against a vulnerable server.
Thunderbird now treats two copies of the Location, Content-Length, or
Content-Disposition header as an error condition. (CVE-2011-3000)
A flaw was found in the way Thunderbird handled frame objects with certain
names. An attacker could use this flaw to cause a plug-in to grant its
content access to another site or the local file system, violating the
same-origin policy. (CVE-2011-2999)
An integer underflow flaw was found in the way Thunderbird handled large
Thunderbird to crash or, potentially, execute arbitrary code with the
privileges of the user running Thunderbird. (CVE-2011-2998)
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.
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
5. Bugs fixed (http://bugzilla.redhat.com/):
741902 - CVE-2011-2995 Mozilla: Miscellaneous memory safety hazards (MFSA 2011-36)
741904 - CVE-2011-2999 Mozilla: XSS via plugins and shadowed window.location object (MFSA 2011-38)
741905 - CVE-2011-3000 Mozilla:Defense against multiple Location headers due to CRLF Injection (MFSA 2011-39)
741917 - CVE-2011-2372 Mozilla:Code installation through holding down Enter (MFSA 2011-40)
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Red Hat Enterprise Linux Server Optional (v. 6):
Red Hat Enterprise Linux Workstation (v. 6):
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2011 Red Hat, Inc.
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