(Red Hat Issues Fix for Thunderbird) Mozilla Firefox Bug in Processing Adobe Flash Contents Lets Remote Users Bypass Cross-Domain Restrictions
SecurityTracker Alert ID: 1022466|
SecurityTracker URL: http://securitytracker.com/id/1022466
(Links to External Site)
Date: Jun 26 2009
Disclosure of user information, Host/resource access via network, Modification of user information|
Fix Available: Yes Vendor Confirmed: Yes |
A vulnerability was reported in Mozilla Firefox. A remote user can conduct cross-site request forgery attacks. Mozilla Thunderbird is affected.|
A remote user can create specially crafted Adobe Flash content that, when loaded via the 'view-source:' scheme, will bypass cross-domain restrictions and will run with the privileges provided to local content.
The Flash content can connect to arbitrary resources via HTTP and conduct cross-site request forgery attacks.
The Flash content can read and write Local Shared Objects on the target system.
Mozilla SeaMonkey is affected.
Mozilla Thunderbird may be affected if plugins are enabled in mail (not the default setting).
Gregory Fleischer reported this vulnerability.
A remote user can conduct cross-domain restrictions to conduct cross-site request forgery attacks.|
A remote user can read and write shared objects on the target system.
Red Hat has released a fix for Mozilla Thunderbird.|
The Red Hat advisory is available at:
Vendor URL: www.mozilla.org/security/announce/2009/mfsa2009-17.html (Links to External Site)
Access control error|
|Underlying OS: Linux (Red Hat Enterprise)|
|Underlying OS Comments: 5|
This archive entry is a follow-up to the message listed below.|
Source Message Contents
Subject: [RHSA-2009:1126-01] Moderate: thunderbird security update|
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Red Hat Security Advisory
Synopsis: Moderate: thunderbird security update
Advisory ID: RHSA-2009:1126-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1126.html
Issue date: 2009-06-25
CVE Names: CVE-2009-1303 CVE-2009-1305 CVE-2009-1306
CVE-2009-1307 CVE-2009-1308 CVE-2009-1309
CVE-2009-1392 CVE-2009-1833 CVE-2009-1836
An updated thunderbird package that fixes several security issues is now
available for Red Hat Enterprise Linux 5.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64
Mozilla Thunderbird is a standalone mail and newsgroup client.
Several flaws were found in the processing of malformed HTML mail content.
An HTML mail message containing malicious content could cause Thunderbird
to crash or, potentially, execute arbitrary code as the user running
Thunderbird. (CVE-2009-1392, CVE-2009-1303, CVE-2009-1305, CVE-2009-1833,
Several flaws were found in the way malformed HTML mail content was
processed. An HTML mail message containing malicious content could execute
presenting misleading data to the user, or stealing sensitive information
such as login credentials. (CVE-2009-1306, CVE-2009-1307, CVE-2009-1308,
A flaw was found in the way Thunderbird handled error responses returned
from proxy servers. If an attacker is able to conduct a man-in-the-middle
attack against a Thunderbird instance that is using a proxy server, they
may be able to steal sensitive information from the site Thunderbird is
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 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
5. Bugs fixed (http://bugzilla.redhat.com/):
456202 - Launch thunderbird with option "-contentLocale" <locale> will get warning message
496253 - CVE-2009-1303 Firefox 2 and 3 Layout engine crash
496262 - CVE-2009-1306 Firefox jar: scheme ignores the content-disposition: header on the inner URI
496263 - CVE-2009-1307 Firefox Same-origin violations when Adobe Flash loaded via view-source: protocol
496266 - CVE-2009-1308 Firefox XSS hazard using third-party stylesheets and XBL bindings
496267 - CVE-2009-1309 Firefox Same-origin violations in XMLHttpRequest and XPCNativeWrapper.toString
503568 - CVE-2009-1392 Firefox browser engine crashes
503578 - CVE-2009-1836 Firefox SSL tampering via non-200 responses to proxy CONNECT requests
503580 - CVE-2009-1838 Firefox arbitrary code execution flaw
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
RHEL Optional Productivity Applications (v. 5 server):
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 <email@example.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2009 Red Hat, Inc.
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