USN-2307-1: GPGME vulnerability

6 August 2014

gpgme1.0 vulnerability

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

  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

GPGME could be made to crash or run programs as your login if it processed a specially crafted certificate.

Software Description

  • gpgme1.0 - GPGME - GnuPG Made Easy (library)

Details

Tomáš Trnka discovered that GPGME incorrectly handled certain certificate line lengths. An attacker could use this issue to cause applications using GPGME to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 14.04 LTS
libgpgme11 - 1.4.3-0.1ubuntu5.1
Ubuntu 12.04 LTS
libgpgme11 - 1.2.0-1.4ubuntu2.1
Ubuntu 10.04 LTS
libgpgme11 - 1.2.0-1.2ubuntu1.1

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