Vulnerability Details CVE-2021-36084
The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermission and __cil_pre_verify_helper).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.3%
CVSS Severity
CVSS v3 Score 3.3
CVSS v2 Score 2.1
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31065
- https://github.com/SELinuxProject/selinux/commit/f34d3d30c8325e4847a6b696fe7a3936a8a361f3
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-417.yaml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31065
- https://github.com/SELinuxProject/selinux/commit/f34d3d30c8325e4847a6b696fe7a3936a8a361f3
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-417.yaml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/
Products affected by CVE-2021-36084
-
cpe:2.3:o:fedoraproject:fedora:35
-
cpe:2.3:o:selinux_project:selinux:3.2