What’s Vulnerable › Vulnerabilities

CVE-2021-20298

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-23 · updated 2026-06-17
• Weakness: CWE-400

Description

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.

Affected products

• Debian Linux: 10.0
• AcademySoftwareFoundation openexr: through 2.5.7

References

• https://access.redhat.com/security/cve/CVE-2021-20298
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
• https://bugzilla.redhat.com/show_bug.cgi?id=1939156
• https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
• https://github.com/AcademySoftwareFoundation/openexr/pull/843
• https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
• https://access.redhat.com/security/cve/CVE-2021-20298
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25913
• https://bugzilla.redhat.com/show_bug.cgi?id=1939156
• https://github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97
• https://github.com/AcademySoftwareFoundation/openexr/pull/843
• https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html

Get alerted when CVE-2021-20298 or the next vulnerability affects your stack