1. Ubuntu Security Notices
  2. USN-5359-1

USN-5359-1: rsync vulnerability

Publication date

31 March 2022

Overview

rsync could be made to crash or run programs if it received specially crafted network traffic.

Releases

Packages

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

Details

Danilo Ramos discovered that rsync incorrectly handled memory when
performing certain zlib deflating operations. An attacker could use this
issue to cause rsync to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Danilo Ramos discovered that rsync incorrectly handled memory when
performing certain zlib deflating operations. An attacker could use this
issue to cause rsync to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Update instructions

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
20.04 focal rsync –  3.1.3-8ubuntu0.3
18.04 bionic rsync –  3.1.2-2.1ubuntu1.4

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 ›