USN-811-1: Firefox and Xulrunner vulnerability

Releases

• Ubuntu 9.04
• Ubuntu 8.10
• Ubuntu 8.04

Packages

• firefox-3.0 -
• xulrunner-1.9 -

Details

Juan Pablo Lopez Yacubian discovered that Firefox did not properly display
invalid URLs. If a user were tricked into accessing a malicious website, an
attacker could exploit this to spoof the location bar, such as in a
phishing attack. Furthermore, if the malicious website had a valid SSL
certificate, Firefox would display the spoofed page as trusted.

Update instructions

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

Ubuntu 9.04

• firefox-3.0 - 3.0.13+nobinonly-0ubuntu0.9.04.1
• abrowser - 3.0.13+nobinonly-0ubuntu0.9.04.1
• xulrunner-1.9 - 1.9.0.13+nobinonly-0ubuntu0.9.04.1

Ubuntu 8.10

• firefox-3.0 - 3.0.13+nobinonly-0ubuntu0.8.10.1
• abrowser - 3.0.13+nobinonly-0ubuntu0.8.10.1
• xulrunner-1.9 - 1.9.0.13+nobinonly-0ubuntu0.8.10.1

Ubuntu 8.04

• firefox-3.0 - 3.0.13+nobinonly-0ubuntu0.8.04.1
• xulrunner-1.9 - 1.9.0.13+nobinonly-0ubuntu0.8.04.1

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-2009-2654