1. Ubuntu Security Notices
  2. USN-5921-1

USN-5921-1: rsync vulnerabilities

Publication date

6 March 2023

Overview

rsync could be made to overwrite files.

Releases

Packages

  • rsync - fast, versatile, remote (and local) file-copying tool

Details

Koen van Hove discovered that the rsync client incorrectly validated
filenames returned by servers. If a user or automated system were tricked
into connecting to a malicious server, a remote attacker could use this
issue to write arbitrary files, and possibly escalate privileges.

Koen van Hove discovered that the rsync client incorrectly validated
filenames returned by servers. If a user or automated system were tricked
into connecting to a malicious server, a remote attacker could use this
issue to write arbitrary files, and possibly escalate privileges.

Update instructions

On Ubuntu 22.04 LTS and Ubuntu 22.10, this update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.10 kinetic rsync –  3.2.7-0ubuntu0.22.10.1
22.04 jammy rsync –  3.2.7-0ubuntu0.22.04.2
20.04 focal rsync –  3.1.3-8ubuntu0.5
18.04 bionic rsync –  3.1.2-2.1ubuntu1.6

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›