CVE-2021-3474: Integer Overflow
First published: Mon Mar 15 2021(Updated: )
There's a flaw in OpenEXR in versions before 3.0.0-beta. A crafted input file that is processed by OpenEXR could cause a shift overflow in the FastHufDecoder, potentially leading to problems with 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=24831
- https://bugzilla.redhat.com/show_bug.cgi?id=1939142
- 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=1939172
- https://github.com/AcademySoftwareFoundation/openexr/commit/c3ed4a1db1f39bf4524a644cb2af81dc8cfab33f
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-3474.
What is the title of this vulnerability?
The title of this vulnerability is 'Flaw in OpenEXR before 3.0.0-beta causing shift overflow in FastHufDecoder.'
What is the severity of CVE-2021-3474?
The severity of CVE-2021-3474 is medium with a CVSS score of 5.3.
Which software versions are affected by this vulnerability?
OpenEXR versions up to exclusive 2.4.3 and between inclusive-exclusive 2.5.0 to 2.5.4 are affected, as well as Debian Linux versions 9.0 and 10.0.
How can this vulnerability be exploited?
A crafted input file that is processed by OpenEXR could cause a shift overflow in the FastHufDecoder, potentially leading to problems with application availability.
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