CVE-2021-45928

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-01-01 · updated 2026-06-17
Weakness: CWE-787

Description

libjxl b02d6b9, as used in libvips 8.11 through 8.11.2 and other products, has an out-of-bounds write in jxl::ModularFrameDecoder::DecodeGroup (called from jxl::FrameDecoder::ProcessACGroup and jxl::ThreadPool::RunCallState<jxl::FrameDecoder::ProcessSections).

Affected products

libjxl: before 0.6.1 — fixed in 0.6.1

How to fix

Upgrade to a fixed version: libjxl 0.6.1. Check the vendor advisory for mitigations.

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36456
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libvips/OSV-2021-1055.yaml
https://github.com/libjxl/libjxl/compare/v0.5...v0.6
https://github.com/libjxl/libjxl/issues/360
https://github.com/libjxl/libjxl/pull/365
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36456
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libvips/OSV-2021-1055.yaml
https://github.com/libjxl/libjxl/compare/v0.5...v0.6
https://github.com/libjxl/libjxl/issues/360
https://github.com/libjxl/libjxl/pull/365

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