USN-798-1: Firefox and Xulrunner vulnerabilities

Ubuntu Security Notice USN-798-1

22nd July, 2009

firefox-3.0, xulrunner-1.9 vulnerabilities

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

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software description

  • firefox-3.0
  • xulrunner-1.9

Details

Several flaws were discovered in the Firefox browser and JavaScript
engines. If a user were tricked into viewing a malicious website, a remote
attacker could cause a denial of service or possibly execute arbitrary code
with the privileges of the user invoking the program. (CVE-2009-2462,
CVE-2009-2463, CVE-2009-2464, CVE-2009-2465, CVE-2009-2466, CVE-2009-2469)

Attila Suszter discovered a flaw in the way Firefox processed Flash content.
If a user were tricked into viewing and navigating within a specially
crafted Flash object, a remote attacker could cause a denial of service or
possibly execute arbitrary code with the privileges of the user invoking
the program. (CVE-2009-2467)

It was discovered that Firefox did not properly handle some SVG content. An
attacker could exploit this to cause a denial of service or possibly
execute arbitrary code with the privileges of the user invoking the
program. (CVE-2009-2469)

A flaw was discovered in the JavaScript engine. If a user were tricked into
viewing a malicious website, an attacker could exploit this perform
cross-site scripting attacks. (CVE-2009-2472)

Update instructions

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

Ubuntu 9.04:
firefox-3.0 3.0.12+build1+nobinonly-0ubuntu0.9.04.1
abrowser 3.0.12+build1+nobinonly-0ubuntu0.9.04.1
xulrunner-1.9 1.9.0.12+build1+nobinonly-0ubuntu0.9.04.1
Ubuntu 8.10:
firefox-3.0 3.0.12+build1+nobinonly-0ubuntu0.8.10.1
abrowser 3.0.12+build1+nobinonly-0ubuntu0.8.10.1
xulrunner-1.9 1.9.0.12+build1+nobinonly-0ubuntu0.8.10.2
Ubuntu 8.04 LTS:
firefox-3.0 3.0.12+build1+nobinonly-0ubuntu0.8.04.1
xulrunner-1.9 1.9.0.12+build1+nobinonly-0ubuntu0.8.04.1

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-2009-2462, CVE-2009-2463, CVE-2009-2464, CVE-2009-2465, CVE-2009-2466, CVE-2009-2467, CVE-2009-2469, CVE-2009-2472