CVE-2021-20304
HIGHOpenEXR < 2.5.7 - Denial of Service via hufDecode Undefined Right Shift
Title source: llmDescription
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.
References (6)
Core 6
Core References
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202210-31
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-20304
Exploit, Mailing List, Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26229
Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939157
Patch, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41e
Patch, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/pull/849
Scores
CVSS v3
7.5
EPSS
0.0151
EPSS Percentile
71.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-190
Status
published
Products (1)
openexr/openexr
< 2.5.7
Published
Aug 23, 2022
Tracked Since
Feb 18, 2026