GLSA 202407-24: HarfBuzz: Denial of Service
| Severity: | normal |
| Title: | HarfBuzz: Denial of Service |
| Date: | 07/10/2024 |
| Bugs: | |
| ID: | 202407-24 |
Synopsis
A vulnerability has been discovered in HarfBuzz, which can lead to a denial of service.Background
HarfBuzz is an OpenType text shaping engine.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| media-libs/harfbuzz | < 7.1.0 | >= 7.1.0 | All supported architectures |
Description
Multiple vulnerabilities have been discovered in HarfBuzz. Please review the CVE identifiers referenced below for details.
Impact
hb-ot-layout-gsubgpos.hh in HarfBuzz allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.
Workaround
There is no known workaround at this time.
Resolution
All HarfBuzz users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/harfbuzz-7.1.0"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.