USN-626-1: Firefox and xulrunner vulnerabilities

Releases

• Ubuntu 8.04

Packages

• firefox-3.0 -
• xulrunner-1.9 -

Details

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 and xulrunner, as used by browsers
such as Epiphany, did not properly perform URI splitting with pipe
symbols when passed a command-line URI. If Firefox or xulrunner 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 versions:

Ubuntu 8.04

• firefox-3.0 - 3.0.1+build1+nobinonly-0ubuntu0.8.04.3
• xulrunner-1.9 - 1.9.0.1+build1+nobinonly-0ubuntu0.8.04.3

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-2008-2785
• CVE-2008-2933
• CVE-2008-2934

Related notices

• USN-623-1: firefox
• USN-629-1: thunderbird, mozilla-thunderbird