[USN-5359-1] rsync vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Thu Mar 31 14:02:13 UTC 2022

Ubuntu Security Notice USN-5359-1
March 31, 2022

rsync vulnerability

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS


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

Software Description:
- rsync: fast, versatile, remote (and local) file-copying tool


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:

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

Ubuntu 20.04 LTS:
  rsync                           3.1.3-8ubuntu0.3

Ubuntu 18.04 LTS:
  rsync                           3.1.2-2.1ubuntu1.4

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


Package Information:
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