Home/CVE/A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed
CVE

CVE-2021-20298

A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed

A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.

HIGH · CVSS 7.5 EPSS 0.00248
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

2
openexr<= 2.5.7
debian linuxall versions
▣

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

6
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-2021-20298Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1939156Issue TrackingThird Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97PatchThird Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/pull/843PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing ListThird Party Advisory
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