VulnerabilityAnalyzed
CVE-2021-36086
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).
LOW 3.3EPSS 0.60%
Does this matter?
Lower severity and a low EPSS score (0.60%). Track it; it rarely justifies an emergency change on its own.
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).
- CVSS 3.1
- 3.3 LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 0.60% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- debian/debian linux · netapp/active iq unified manager · netapp/bootstrap os · netapp/h610c firmware · netapp/h610s firmware · netapp/h615c firmware · selinux project/selinux · fedoraproject/fedora
- Source
- cve@mitre.org
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yamlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/Broken Link
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yamlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/10/msg00021.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/Broken Link
- https://security.netapp.com/advisory/ntap-20250207-0004/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.