USN-5573-1: rsync vulnerability

Publication date

18 August 2022

Overview

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


Packages

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

Details

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

Evgeny Legerov discovered that zlib incorrectly handled memory when
performing certain inflate 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 –  3.1.3-8ubuntu0.4
18.04 bionic rsync –  3.1.2-2.1ubuntu1.5
16.04 xenial rsync –  3.1.1-3ubuntu1.3+esm2  

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