1. Ubuntu Security Notices
  2. USN-7251-1

USN-7251-1: HarfBuzz vulnerability

Publication date

3 February 2025

Overview

HarfBuzz could be made to consume resources if it opened a specially crafted font.

Releases

Packages

  • harfbuzz - OpenType text shaping engine

Details

It was discovered that HarfBuzz incorrectly handled shaping certain fonts.
A remote attacker could possibly use this issue to cause HarfBuzz to
consume resources, leading to a denial of service.

It was discovered that HarfBuzz incorrectly handled shaping certain fonts.
A remote attacker could possibly use this issue to cause HarfBuzz to
consume resources, leading to a denial of service.

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:

Ubuntu Release Package Version
22.04 jammy libharfbuzz0b –  2.7.4-1ubuntu3.2
20.04 focal libharfbuzz0b –  2.6.4-1ubuntu4.3

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References

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