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USN-5573-1: rsync vulnerability

18 August 2022

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



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


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

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

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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


Related notices

  • USN-5570-1: lib64z1-dev, zlib1g-dev, zlib-bin, libx32z1-dev, zlib1g, libx32z1, lib32z1-dev, lib64z1, zlib, lib32z1