USN-5570-1 fixed a vulnerability in zlib. This update provides the corresponding update for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
Evgeny Legerov discovered that zlib incorrectly handled memory when performing certain inflate operations. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code.
1:1.2.11.dfsg-2ubuntu1.51:1.2.11.dfsg-2ubuntu9.2