USN-8456-1: libxml2 vulnerability

Publication date

22 June 2026

Overview

libxml2 could be made to crash or run programs if it received specially crafted input.


Packages

Details

Geoffrey Humphreys discovered that libxml2 had a use after free when
parsing the internal subset of a DTD. A remote attacker could possibly use
this issue to cause a denial of service or possibly execute arbitrary code.

Geoffrey Humphreys discovered that libxml2 had a use after free when
parsing the internal subset of a DTD. A remote attacker could possibly use
this issue to cause 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:


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