Ubuntu Security Notice USN-811-1
7th August, 2009
firefox-3.0, xulrunner-1.9 vulnerability
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
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 version:
- 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 LTS:
- firefox-3.0 3.0.13+nobinonly-0ubuntu0.8.04.1
- xulrunner-1.9 1.9.0.13+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.