CVE-2021-20296

MEDIUM

OpenEXR < 3.0.0-beta - Denial of Service via Dwa Decompression NULL Pointer Dereference

Title source: llm
STIX 2.1

Description

A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system 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, Patch, Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854
Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939141

Scores

CVSS v3 5.3
EPSS 0.0175
EPSS Percentile 75.0%
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-476
Status published
Products (3)
debian/debian_linux 9.0
debian/debian_linux 10.0
openexr/openexr < 2.4.3
Published Apr 01, 2021
Tracked Since Feb 18, 2026