CVE-2021-20304
Gentoo Linux Security Advisory 202210-31
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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.
Se ha encontrado un fallo en la funcionalidad hufDecode de OpenEXR. Este fallo permite a un atacante que pueda pasar un archivo diseƱado para ser procesado por OpenEXR, desencadenar un error de desplazamiento a la derecha no definido. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema.
An update that fixes 7 vulnerabilities is now available. This update for openexr fixes the following issues. Fixed Out-of-memory in B44Compressor. Fixed Null-dereference READ in Imf_2_5:Header:operator. Fixed Integer-overflow in Imf_2_5:hufUncompress. Fixed Floating-point-exception in Imf_2_5:precalculateTileInfot. Fixed Heap-buffer-overflow in Imf_2_5::copyIntoFrameBuffer. Fixed Undefined-shift in Imf_2_5:hufDecode.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-12-17 CVE Reserved
- 2021-08-20 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-06-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (6)
URL | Tag | Source |
---|---|---|
https://access.redhat.com/security/cve/CVE-2021-20304 | Third Party Advisory | |
https://bugzilla.redhat.com/show_bug.cgi?id=1939157 | Issue Tracking |
URL | Date | SRC |
---|---|---|
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26229 | 2024-08-03 |
URL | Date | SRC |
---|---|---|
https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41e | 2022-12-07 | |
https://github.com/AcademySoftwareFoundation/openexr/pull/849 | 2022-12-07 |
URL | Date | SRC |
---|---|---|
https://security.gentoo.org/glsa/202210-31 | 2022-12-07 |