USN-1124-1: rsync vulnerability

27 April 2011

rsync vulnerability

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

  • Ubuntu 10.10
  • Ubuntu 10.04 LTS
  • Ubuntu 9.10


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

Software Description

  • rsync - fast remote file copy program (like rcp)


It was discovered that rsync incorrectly handled memory when certain recursion, deletion and ownership options were used. If a user were tricked into connecting to a malicious server, a remote attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program.

Update instructions

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

Ubuntu 10.10
rsync - 3.0.7-2ubuntu1.1
Ubuntu 10.04 LTS
rsync - 3.0.7-1ubuntu1.1
Ubuntu 9.10
rsync - 3.0.6-1ubuntu1.1

To update your system, please follow these instructions:

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