CVE-2021-45942: Buffer Overflow
First published: Fri Dec 31 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/openexr | <=2.2.1-4.1+deb10u1 | 2.2.1-4.1+deb10u2 2.5.4-2+deb11u1 3.1.5-5 3.1.5-5.1 |
| Openexr Openexr | >=3.1.0<3.1.4 | |
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| Fedoraproject Fedora | =36 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| >=3.1.0<3.1.4 | ||
| =34 | ||
| =35 | ||
| =36 | ||
| =10.0 | ||
| =11.0 |
Remedy
https://github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7d58dd5339e254db7937e
Remedy
https://github.com/AcademySoftwareFoundation/openexr/commit/db217f29dfb24f6b4b5100c24ac5e7490e1c57d0
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41416
- https://github.com/AcademySoftwareFoundation/openexr/pull/1209
- https://github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7d58dd5339e254db7937e
- https://security-tracker.debian.org/tracker/CVE-2021-45942
- https://github.com/AcademySoftwareFoundation/openexr/blob/v3.1.4/CHANGES.md#version-314-january-26-2022
- https://github.com/AcademySoftwareFoundation/openexr/commit/db217f29dfb24f6b4b5100c24ac5e7490e1c57d0
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.1.4
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openexr/OSV-2021-1627.yaml
- https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6TEZDE2S2DB4BF4LZSSV4W3DNW7DSRHJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJ5PW4WNXBKCRFGDZGAQOSVH2BKZKL4X/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XJUK7WIQV5EKWTCZBRXFN6INHG6MLS5O/
- https://security.gentoo.org/glsa/202210-31
- https://www.debian.org/security/2022/dsa-5299
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJ5PW4WNXBKCRFGDZGAQOSVH2BKZKL4X/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XJUK7WIQV5EKWTCZBRXFN6INHG6MLS5O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6TEZDE2S2DB4BF4LZSSV4W3DNW7DSRHJ/
Frequently Asked Questions
What is CVE-2021-45942?
CVE-2021-45942 is a vulnerability in OpenEXR 3.1.x before 3.1.4 that allows a heap-based buffer overflow in the execute function of the LineCompositeTask class.
What is the severity of CVE-2021-45942?
CVE-2021-45942 has a severity rating of 5.5 (medium).
How does CVE-2021-45942 affect OpenEXR?
CVE-2021-45942 affects OpenEXR versions 3.1.x before 3.1.4.
How can I fix CVE-2021-45942?
To fix CVE-2021-45942, update OpenEXR to version 3.1.4 or later.
Where can I find more information about CVE-2021-45942?
You can find more information about CVE-2021-45942 at the following references: [Reference 1](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41416), [Reference 2](https://github.com/AcademySoftwareFoundation/openexr/blob/v3.1.4/CHANGES.md#version-314-january-26-2022), [Reference 3](https://github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7d58dd5339e254db7937e).
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