CVE-2021-3476

MEDIUM

OpenEXR < 3.0.0-beta - Denial of Service via B44 Uncompression Shift Overflow

Title source: llm
STIX 2.1

Description

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.

References (5)

Core 5
Core References
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=24787
Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939145

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