PT-2021-24320 · Harfbuzz · Harfbuzz

Published 2021-12-31 · Updated 2022-10-28 · CVE-2021-45931

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: HarfBuzz version 2.9.0

Description: The issue is related to an out-of-bounds write in hb bit set invertible t::set, which is called from hb sparseset t<hb bit set invertible t>::set and hb set copy.

Recommendations: For HarfBuzz version 2.9.0, at the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-45931

Affected Products

Harfbuzz

References · 10

• 🔥 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/harfbuzz/OSV-2021-1159.yaml · Exploit
• 🔥 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37425 · Exploit
• https://github.com/harfbuzz/harfbuzz/commit/d3e09bf4654fe5478b6dbf2b26ebab6271317d81 · Patch
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5A7TCR2MY46YK3NHQZB3SLESUH354IEA · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-45931 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4EAIZKL4O67FN2CWJYHYKZEMNYWNWO3D · Vendor Advisory
• https://security.gentoo.org/glsa/202209-11 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45931 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DI6247WOAKB46CZZ6SCDSJVWWCW3GMZH · Vendor Advisory
• https://t.me/cibsecurity/34806 · Telegram Post