USN-745-1: Firefox and Xulrunner vulnerabilities

28 March 2009

firefox, firefox-3.0, xulrunner-1.9 vulnerabilities

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

  • Ubuntu 8.10
  • Ubuntu 8.04 LTS
  • Ubuntu 7.10
  • Ubuntu 6.06 LTS

Software Description

  • firefox-3.0
  • xulrunner-1.9
  • firefox

Details

It was discovered that Firefox did not properly perform XUL garbage collection. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service or execute arbitrary code with the privileges of the user invoking the program. This issue only affected Ubuntu 8.04 LTS and 8.10. (CVE-2009-1044)

A flaw was discovered in the way Firefox performed XSLT transformations. If a user were tricked into opening a crafted XSL stylesheet, an attacker could cause a denial of service or execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-1169)

Update instructions

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

Ubuntu 8.10
abrowser - 3.0.8+nobinonly-0ubuntu0.8.10.2
firefox-3.0 - 3.0.8+nobinonly-0ubuntu0.8.10.2
xulrunner-1.9 - 1.9.0.8+nobinonly-0ubuntu0.8.10.1
Ubuntu 8.04 LTS
firefox-3.0 - 3.0.8+nobinonly-0ubuntu0.8.04.2
xulrunner-1.9 - 1.9.0.8+nobinonly-0ubuntu0.8.04.1
Ubuntu 7.10
firefox - 2.0.0.21~tb.21.308+nobinonly-0ubuntu0.7.10.1
Ubuntu 6.06 LTS
firefox - 1.5.dfsg+1.5.0.15~prepatch080614l-0ubuntu1

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

After a standard system upgrade you need to restart Firefox and any applications that use xulrunner, such as Epiphany, to effect the necessary changes.

References