CVE-2021-45942

moderate-risk

Published 2022-01-01

OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask). NOTE: db217f2 may be inapplicable.

Do I need to act?

0.62% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (6)

Openexr

Fedora

Debian Linux

Affected Vendors

Debian Fedoraproject Openexr

References (26)

Exploit https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41416

Release Notes https://github.com/AcademySoftwareFoundation/openexr/blob/v3.1.4/CHANGES.md#vers...

Patch https://github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7...

Patch https://github.com/AcademySoftwareFoundation/openexr/commit/db217f29dfb24f6b4b51...

Exploit https://github.com/AcademySoftwareFoundation/openexr/pull/1209

Release Notes https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.1.4

Third Party Advisory https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openexr/OSV-2021-1627.y...

Mailing List https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/202210-31

Third Party Advisory https://www.debian.org/security/2022/dsa-5299

Exploit https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41416

Release Notes https://github.com/AcademySoftwareFoundation/openexr/blob/v3.1.4/CHANGES.md#vers...

Patch https://github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7...

Patch https://github.com/AcademySoftwareFoundation/openexr/commit/db217f29dfb24f6b4b51...

Exploit https://github.com/AcademySoftwareFoundation/openexr/pull/1209

Release Notes https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.1.4

Third Party Advisory https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openexr/OSV-2021-1627.y...

and 6 more references

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moderate-risk

Severity 18/34 · Moderate

Exploitability 2/34 · Minimal

Exposure 13/34 · Low