CVE-2021-20304

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.

• CWE-190
• CWE-190

• 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

Published

Aug 23, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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