thunderbird vulnerabilities

24 January 2012

thunderbird vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 11.10

Summary

Several security issues were fixed in Thunderbird.

Software Description

• thunderbird - Mozilla Open Source mail and newsgroup client

Details

Alexandre Poirot, Chris Blizzard, Kyle Huey, Scoobidiver, Christian Holler, David Baron, Gary Kwong, Jim Blandy, Bob Clary, Jesse Ruderman, Marcia Knous, and Rober Longson discovered several memory safety issues which could possibly be exploited to crash Thunderbird or execute arbitrary code as the user that invoked Thunderbird. (CVE-2011-3660)

Aki Helin discovered a crash in the YARR regular expression library that could be triggered by javascript in web content. (CVE-2011-3661)

It was discovered that a flaw in the Mozilla SVG implementation could result in an out-of-bounds memory access if SVG elements were removed during a DOMAttrModified event handler. An attacker could potentially exploit this vulnerability to crash Thunderbird. (CVE-2011-3658)

Mario Heiderich discovered it was possible to use SVG animation accessKey events to detect key strokes even when JavaScript was disabled. A malicious web page could potentially exploit this to trick a user into interacting with a prompt thinking it came from Thunderbird in a context where the user believed scripting was disabled. (CVE-2011-3663)

It was discovered that it was possible to crash Thunderbird when scaling an OGG <video> element to extreme sizes. (CVE-2011-3665)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.10

thunderbird - 9.0+build2-0ubuntu0.11.10.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart Thunderbird to make all the necessary changes.

References

• CVE-2011-3658
• CVE-2011-3660
• CVE-2011-3661
• CVE-2011-3663
• CVE-2011-3665
• LP: 909599