CVE-2021-45942

MEDIUM 5.5CVE-2021-45942 · Published 01/01/2022 · updated 17/06/2026

In short

CVE-2021-45942 is a MEDIUM (CVSS 5.5) vulnerability affecting openexr (openexr).
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 78.8% of all vulnerabilities.
Fix: update to 3.1.4 or later.

Package	Affected versions	Patched versions
openexr openexr	`≥ 3.1.0, < 3.1.4`	`3.1.4`

Description

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.

References

bugs.chromium.org/p/oss-fuzz/issues/detail · Exploit
AcademySoftwareFoundation/openexr · Release Notes
AcademySoftwareFoundation/openexr commit 11cad77 · Patch
AcademySoftwareFoundation/openexr commit db217f2 · Patch
AcademySoftwareFoundation/openexr#1209 · Exploit
AcademySoftwareFoundation/openexr release v3.1.4 · Release Notes
google/oss-fuzz-vulns · Third Party Advisory
lists.debian.org/debian-lts-announce/2022/12/msg00022.html · Mailing List
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6TEZDE2S2DB4BF4LZSSV4W3DNW7DSRHJ

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Package

Affected versions

Patched versions

openexr

≥ 3.1.0, < 3.1.4

3.1.4

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