Home/CVE/A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be pr
CVE

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 pr

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.

HIGH · CVSS 7.5 EPSS 0.00166
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

1
openexr<= 2.5.7
⚠

Public Exploits & PoCs

1
pocbugs.chromium.org · detail?id=26229bugs.chromium.org
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Aug 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

5
suse-csafSUSE-SU-2021:14846-1
suse-csafSUSE-SU-2021:2913-1
suse-csafopenSUSE-SU-2021:1198-1
suse-csafopenSUSE-SU-2021:2793-1
suse-csafSUSE-SU-2021:2793-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2021-20304Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939157Issue TrackingThird Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/commit/51a92d67f53c08230734e74564c807043cbfe41ePatchThird Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/pull/849PatchThird Party Advisory
https://security.gentoo.org/glsa/202210-31Third Party Advisory
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