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.