gnupg, gnupg2 vulnerability

9 January 2013

gnupg, gnupg2 vulnerability

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

• Ubuntu 12.10
• Ubuntu 12.04 LTS
• Ubuntu 11.10
• Ubuntu 10.04 LTS
• Ubuntu 8.04 LTS

Summary

GnuPG could be made to corrupt the keyring if it imported a specially crafted key.

Software Description

• gnupg - GNU privacy guard - a free PGP replacement
• gnupg2 - GNU privacy guard - a free PGP replacement

Details

KB Sriram discovered that GnuPG incorrectly handled certain malformed keys. If a user or automated system were tricked into importing a malformed key, the GnuPG keyring could become corrupted.

Update instructions

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

Ubuntu 12.10

gnupg - 1.4.11-3ubuntu4.1

gnupg2 - 2.0.17-2ubuntu3.1

Ubuntu 12.04 LTS

gnupg - 1.4.11-3ubuntu2.2

gnupg2 - 2.0.17-2ubuntu2.12.04.2

Ubuntu 11.10

gnupg - 1.4.11-3ubuntu1.11.10.2

gnupg2 - 2.0.17-2ubuntu2.11.10.2

Ubuntu 10.04 LTS

gnupg - 1.4.10-2ubuntu1.2

gnupg2 - 2.0.14-1ubuntu1.5

Ubuntu 8.04 LTS

gnupg - 1.4.6-2ubuntu5.2

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

In general, a standard system update will make all the necessary changes.

References

• CVE-2012-6085