USN-843-1: BackupPC vulnerability

Ubuntu Security Notice USN-843-1

6th October, 2009

backuppc vulnerability

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

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software description

  • backuppc


It was discovered that BackupPC did not restrict normal users from setting
the ClientNameAlias parameter. An authenticated user could exploit this to
gain access to unauthorized hosts. This update fixed the issue by
preventing normal users from modifying the ClientNameAlias configuration

Update instructions

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

Ubuntu 9.04:
backuppc 3.1.0-4ubuntu1.1
Ubuntu 8.10:
backuppc 3.1.0-3ubuntu2.1
Ubuntu 8.04 LTS:
backuppc 3.0.0-4ubuntu1.1

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the
necessary changes.