CVE-2021-3474

MEDIUM

OpenEXR < 3.0.0-beta - Denial of Service via FastHufDecoder Shift Overflow

Title source: llm

Description

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.

References (5)

Core 5

Core References

Mailing List, Third Party Advisory mailing-list

https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html

Third Party Advisory vendor-advisory

https://security.gentoo.org/glsa/202107-27

Mailing List, Third Party Advisory mailing-list

https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html

Issue Tracking, Mailing List, Third Party Advisory

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24831

Issue Tracking, Patch, Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1939142

Scores

CVSS v3 5.3

EPSS 0.0185

EPSS Percentile 76.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE

CWE-190

Status published

Products (3)

debian/debian_linux 9.0

debian/debian_linux 10.0

openexr/openexr < 2.4.3

Published Mar 30, 2021

Tracked Since Feb 18, 2026