USN-1371-1: cvs vulnerability

22 February 2012

cvs vulnerability

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

  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.10
  • Ubuntu 10.04 LTS


cvs could be made to crash or run programs as your login if it connected to a malicious proxy server.

Software Description

  • cvs - Concurrent Versions System


It was discovered that cvs incorrectly handled certain responses from proxy servers. If a user were tricked into connecting to a malicious proxy server, a remote attacker could cause cvs to crash, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 11.10
cvs - 2:1.12.13+real-6ubuntu0.1
Ubuntu 11.04
cvs - 1:1.12.13-12ubuntu1.11.04.1
Ubuntu 10.10
cvs - 1:1.12.13-12ubuntu1.10.10.1
Ubuntu 10.04 LTS
cvs - 1:1.12.13-12ubuntu1.10.04.1

To update your system, please follow these instructions:

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