CVE-2021-3479
First published: Mon Mar 15 2021(Updated: )
Out-of-memory in openexr_exrenvmap_fuzzer
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openexr Openexr | <2.4.3 | |
| Openexr Openexr | >=2.5.0<2.5.4 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| redhat/OpenEXR | <3.0.0 | 3.0.0 |
| redhat/OpenEXR | <2.4.3 | 2.4.3 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25370
- https://bugzilla.redhat.com/show_bug.cgi?id=1939149
- https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html
- https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
- https://security.gentoo.org/glsa/202107-27
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939184
- https://github.com/AcademySoftwareFoundation/openexr/commit/d80f11f4f55100d007ae80a162bf257ec291612c
- https://github.com/AcademySoftwareFoundation/openexr/pull/830
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939150
- https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-243-may-17-2021
Frequently Asked Questions
What is CVE-2021-3479?
CVE-2021-3479 is a vulnerability in OpenEXR's Scanline API functionality in versions before 3.0.0-beta.
How does CVE-2021-3479 affect OpenEXR?
CVE-2021-3479 allows an attacker who submits a crafted file to trigger excessive memory consumption in OpenEXR, impacting system availability.
Which software versions are affected by CVE-2021-3479?
Versions before 3.0.0-beta of OpenEXR are affected by CVE-2021-3479. Specifically, OpenEXR 2.4.3, OpenEXR 2.5.0 to 2.5.4, Debian Linux 9.0, and Debian Linux 10.0.
What is the severity of CVE-2021-3479?
CVE-2021-3479 is classified as a medium severity vulnerability with a severity value of 5.5.
How can CVE-2021-3479 be mitigated?
To mitigate CVE-2021-3479, it is recommended to update to OpenEXR version 3.0.0-beta or later.
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