Home/CVE/The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set
CVE

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

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 · CVSS 3.3 EPSS 0.00018
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

8
debian linuxall versions
netapp active iq unified managerall versions
netapp bootstrap osall versions
netapp h610c firmwareall versions
netapp h610s firmwareall versions
netapp h615c firmwareall versions
selinux project selinux< 3.3
fedoraproject fedoraall versions
⚠

Public Exploits & PoCs

1
pocbugs.chromium.org · detail?id=32177bugs.chromium.org
▣

Scoring & Timeline

3.3
LOW · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Jul 2021 · 03:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
⚑

Vendor Advisories

7
siemens-csafSSA-202008
suse-csafopenSUSE-SU-2024:10990-1
siemens-csafSSA-398330
usnUSN-5391-1
rhsaRHSA-2021:4513Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8PatchThird 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://lists.debian.org/debian-lts-announce/2024/10/msg00021.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20250207-0004/Third Party Advisory
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