Ubuntu Security Notice USN-381-1

21st November, 2006

firefox vulnerabilities

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

• Ubuntu 6.06 LTS
• Ubuntu 5.10

Details

USN-351-1 fixed a flaw in the verification of PKCS certificate
signatures. Ulrich Kuehn discovered a variant of the original attack
which the original fix did not cover. (CVE-2006-5462)

Various flaws have been reported that allow an attacker to execute
arbitrary code with user privileges by tricking the user into opening
a malicious web page containing JavaScript. (CVE-2006-5463,
CVE-2006-5464, CVE-2006-5747, CVE-2006-5748)

Update instructions

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

Ubuntu 6.06 LTS:

firefox 1.5.dfsg+1.5.0.8-0ubuntu0.6.06

firefox-dev 1.5.dfsg+1.5.0.8-0ubuntu0.6.06

libnss-dev 1.5.dfsg+1.5.0.8-0ubuntu0.6.06

libnss3 1.5.dfsg+1.5.0.8-0ubuntu0.6.06

libnspr-dev 1.5.dfsg+1.5.0.8-0ubuntu0.6.06

libnspr4 1.5.dfsg+1.5.0.8-0ubuntu0.6.06

Ubuntu 5.10:

firefox-dev 1.5.dfsg+1.5.0.8-0ubuntu0.5.10

firefox 1.5.dfsg+1.5.0.8-0ubuntu0.5.10

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to restart Firefox to
effect the necessary changes.

References

CVE-2006-5462, CVE-2006-5463, CVE-2006-5464, CVE-2006-5747, CVE-2006-5748