Ubuntu Security Notice USN-332-1
3rd August, 2006
gnupg vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 6.06 LTS
- Ubuntu 5.10
- Ubuntu 5.04
Details
Evgeny Legerov discovered that gnupg did not sufficiently check the
validity of the comment and a control field. Specially crafted GPG
data could cause a buffer overflow. This could be exploited to execute
arbitrary code with the user's privileges if an attacker can trick an
user into processing a malicious encrypted/signed document with gnupg.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 6.06 LTS:
- gnupg 1.4.2.2-1ubuntu2.2
- Ubuntu 5.10:
- gnupg 1.4.1-1ubuntu1.4
- Ubuntu 5.04:
- gnupg 1.2.5-3ubuntu5.5
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.