CVE-2021-36086

3.3 LOW

Published: July 01, 2021 Modified: March 24, 2026

Description

The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set and cil_reset_classperms_list).

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177

Source: cve@mitre.org

Exploit Issue Tracking Patch Third Party Advisory

https://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8

Source: cve@mitre.org

Patch Third Party Advisory

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yaml

Source: cve@mitre.org

Third Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/

Source: cve@mitre.org

Broken Link

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177