USN-745-1: Firefox and Xulrunner vulnerabilities

Ubuntu Security Notice USN-745-1

27th 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
  • firefox-3.0
  • xulrunner-1.9

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 version:

Ubuntu 8.10:
firefox-3.0 3.0.8+nobinonly-0ubuntu0.8.10.2
abrowser 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

CVE-2009-1044, CVE-2009-1169