CVE-2021-3476: Integer Overflow
First published: Mon Mar 15 2021(Updated: )
A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.
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=24787
- https://bugzilla.redhat.com/show_bug.cgi?id=1939145
- 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=1939171
- https://github.com/AcademySoftwareFoundation/openexr/commit/eec0dba242bedd2778c973ae4af112107b33d9c9
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-3476.
What is the title of the vulnerability?
The title of the vulnerability is 'A flaw in OpenEXR's B44 uncompression functionality'.
What is the severity level of CVE-2021-3476?
The severity level of CVE-2021-3476 is medium (5.3).
Which software versions are affected by CVE-2021-3476?
Versions before 3.0.0-beta of OpenEXR and specific versions (2.4.3, 2.5.0-2.5.4) of OpenEXR are affected.
How can the vulnerability be exploited?
An attacker who is able to submit a crafted file to OpenEXR can trigger shift overflows, potentially affecting application availability.
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