CVE-2021-20304

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be processed by OpenEXR, to trigger an undefined right shift error. The highest threat from this vulnerability is to system availability.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-190

Affected software

Vendor	Product	Versions
n/a	OpenEXR	Fixed in OpenEXR 3.0.0-beta

References

https://access.redhat.com/security/cve/CVE-2021-20304Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26229Exploit, Mailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939157Issue Tracking, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41ePatch, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/pull/849Patch, Third Party Advisory
https://security.gentoo.org/glsa/202210-31Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-20304Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26229Exploit, Mailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939157Issue Tracking, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41ePatch, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/pull/849Patch, Third Party Advisory
https://security.gentoo.org/glsa/202210-31Third Party Advisory

Timeline

Published: Aug 23, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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