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CVE-2021-20298

Date: August 22, 2022

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.

Severity Score

Related Resources (10)

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
https://bugzilla.redhat.com/show_bug.cgi?id=1939156
https://security-tracker.debian.org/tracker/CVE-2021-20298
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-20298
https://nvd.nist.gov/vuln/detail/CVE-2021-20298
https://access.redhat.com/security/cve/CVE-2021-20298
https://github.com/AcademySoftwareFoundation/openexr/pull/843
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
https://www.mend.io/vulnerability-database/CVE-2021-20298

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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