PT-2021-24318 · Libjxl+1 · Libjxl+1

Published 2021-12-31 · Updated 2022-01-12 · CVE-2021-45928

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: libjxl versions prior to 0.6 libvips versions 8.11 through 8.11.2

Description: The issue is an out-of-bounds write in jxl::ModularFrameDecoder::DecodeGroup, which is called from jxl::FrameDecoder::ProcessACGroup and jxl::ThreadPool::RunCallState<jxl::FrameDecoder::ProcessSections>.

Recommendations: For libjxl versions prior to 0.6, update to version 0.6 or later. For libvips versions 8.11 through 8.11.2, consider updating to a version that incorporates the fixed libjxl version.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-45928

Affected Products

Libjxl

Libvips

References · 8

• 🔥 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libvips/OSV-2021-1055.yaml · Exploit
• 🔥 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36456 · Exploit
• https://github.com/libjxl/libjxl/issues/360 · Patch
• https://github.com/libjxl/libjxl/pull/365 · Patch
• https://github.com/libjxl/libjxl/compare/v0.5...v0.6 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-45928 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45928 · Vendor Advisory
• https://t.me/cibsecurity/34797 · Telegram Post