CVE-2021-20300: Integer Overflow
First published: Mon Mar 15 2021(Updated: )
A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openexr Openexr | <2.5.4 | |
| Debian Debian Linux | =10.0 | |
| redhat/OpenEXR | <3.0.0 | 3.0.0 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562
- https://bugzilla.redhat.com/show_bug.cgi?id=1939153
- https://github.com/AcademySoftwareFoundation/openexr/pull/836
- https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939174
- https://github.com/AcademySoftwareFoundation/openexr/commit/ed560b8a932c78d5e8e5990ce36fe7808b35d9f0
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-20300.
What is the severity of CVE-2021-20300?
The severity of CVE-2021-20300 is high with a severity value of 5.5.
Where can I find more information about CVE-2021-20300?
You can find more information about CVE-2021-20300 at the following references: [Link 1](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562), [Link 2](https://bugzilla.redhat.com/show_bug.cgi?id=1939153), [Link 3](https://github.com/AcademySoftwareFoundation/openexr/pull/836).
What is the affected software for CVE-2021-20300?
The affected software for CVE-2021-20300 includes OpenEXR (version up to exclusive 2.5.4), Debian Linux 10.0, and OpenEXR (version up to exclusive 3.0.0) from the redhat source.
How can I fix CVE-2021-20300?
To fix CVE-2021-20300, update OpenEXR to version 3.0.0 or higher.
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