1. Ubuntu Security Notices
  2. USN-1367-2

USN-1367-2: Firefox vulnerability

Publication date

17 February 2012

Overview

Firefox could be made to crash or run programs as your login if it opened a specially crafted file.

Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

USN-1367-1 fixed vulnerabilities in libpng. This provides the corresponding
update for Firefox.

Original advisory details:

Jueri Aedla discovered that libpng did not properly verify the size used
when allocating memory during chunk decompression. If a user or automated
system using libpng were tricked into opening a specially crafted image,
an attacker could exploit this to cause a denial of service or execute
code with the privileges of the user invoking the program. (CVE-2011-3026)

USN-1367-1 fixed vulnerabilities in libpng. This provides the corresponding
update for Firefox.

Original advisory details:

Jueri Aedla discovered that libpng did not properly verify the size used
when allocating memory during chunk decompression. If a user or automated
system using libpng were tricked into opening a specially crafted image,
an attacker could exploit this to cause a denial of service or execute
code with the privileges of the user invoking the program. (CVE-2011-3026)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
11.10 oneiric firefox –  10.0.2+build1-0ubuntu0.11.10.1
11.04 natty firefox –  10.0.2+build1-0ubuntu0.11.04.1
10.10 maverick firefox –  10.0.2+build1-0ubuntu0.10.10.1
10.04 lucid firefox –  10.0.2+build1-0ubuntu0.10.04.1

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References

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