Home/CVE/A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who
CVE

CVE-2021-20300

A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who

A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.

MEDIUM · CVSS 5.5 EPSS 0.00395
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

2
openexr< 2.5.4
debian linuxall versions
▣

Scoring & Timeline

5.5
MEDIUM · 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 NVD04 Mar 2022 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939153Issue TrackingThird Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/pull/836PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing ListThird Party Advisory
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