USN-623-1: Firefox vulnerabilities

Ubuntu Security Notice USN-623-1

17th July, 2008

firefox vulnerabilities

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

  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.06 LTS

Software description

  • firefox


A flaw was discovered in the browser engine. A variable could be made to
overflow causing the browser to crash. If a user were tricked into opening
a malicious web page, an attacker could cause a denial of service or
possibly execute arbitrary code with the privileges of the user invoking
the program. (CVE-2008-2785)

Billy Rios discovered that Firefox did not properly perform URI splitting
with pipe symbols when passed a command-line URI. If Firefox were passed
a malicious URL, an attacker may be able to execute local content with
chrome privileges. (CVE-2008-2933)

Update instructions

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

Ubuntu 7.10:
Ubuntu 7.04:
Ubuntu 6.06 LTS:
firefox 1.5.dfsg+

To update your system, please follow these instructions:

After a standard system upgrade you need to restart Firefox to effect the
necessary changes.


CVE-2008-2785, CVE-2008-2933