Ubuntu Security Notice USN-873-1
18th December, 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
Jesse Ruderman, Josh Soref, Martijn Wargers, Jose Angel, Olli Pettay, and
David James discovered several flaws in the browser and JavaScript engines
of Firefox. 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-2009-3979, CVE-2009-3981, CVE-2009-3986)
Takehiro Takahashi discovered flaws in the NTLM implementation in Firefox.
If an NTLM authenticated user visited a malicious website, a remote
attacker could send requests to other applications, authenticated as the
user. (CVE-2009-3983)
Jonathan Morgan discovered that Firefox did not properly display SSL
indicators under certain circumstances. This could be used by an attacker
to spoof an encrypted page, such as in a phishing attack. (CVE-2009-3984)
Jordi Chancel discovered that Firefox did not properly display invalid URLs
for a blank page. 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. (CVE-2009-3985)
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.04:
- firefox-3.0 3.0.16+nobinonly-0ubuntu0.9.04.1
- abrowser 3.0.16+nobinonly-0ubuntu0.9.04.1
- xulrunner-1.9 1.9.0.16+nobinonly-0ubuntu0.9.04.1
- Ubuntu 8.10:
- firefox-3.0 3.0.16+nobinonly-0ubuntu0.8.10.1
- abrowser 3.0.16+nobinonly-0ubuntu0.8.10.1
- xulrunner-1.9 1.9.0.16+nobinonly-0ubuntu0.8.10.1
- Ubuntu 8.04 LTS:
- firefox-3.0 3.0.16+nobinonly-0ubuntu0.8.04.1
- xulrunner-1.9 1.9.0.16+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 to effect the necessary changes.
References
CVE-2009-3979, CVE-2009-3981, CVE-2009-3983, CVE-2009-3984, CVE-2009-3985, CVE-2009-3986