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USN-5524-1: HarfBuzz vulnerability

19 July 2022

HarfBuzz could be made to crash if it opened specially crafted data.



  • harfbuzz - OpenType text shaping engine


It was discovered that HarfBuzz incorrectly handled certain glyph sizes. A
remote attacker could use this issue to cause HarfBuzz to crash, resulting
in a denial of service.

Update instructions

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

Ubuntu 22.04
Ubuntu 20.04

After a standard system update you need to restart your session to make all
the necessary changes.