CVE-2021-36086

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Summary

CVECVE-2021-36086
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-07-01 03:15:08 UTC
Updated2026-10-14 12:17:14 UTC
DescriptionThe 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).

Risk And Classification

Primary CVSS: v3.1 3.3 LOW from [email protected]

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

Problem Types: CWE-416 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary3.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:L/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Fedoraproject Fedora 35 All All All
Application Netapp Active Iq Unified Manager - All All All
Operating System Netapp Bootstrap Os - All All All
Hardware Netapp H610c - All All All
Operating System Netapp H610c Firmware - All All All
Hardware Netapp H610s - All All All
Operating System Netapp H610s Firmware - All All All
Hardware Netapp H615c - All All All
Operating System Netapp H615c Firmware - All All All
Hardware Netapp Hci Compute Node - All All All
Application Selinux Project Selinux All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens RUGGEDCOM ROX MX5000 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX MX5000RE affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1400 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1500 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1501 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1510 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1511 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1512 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1524 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1536 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX5000 affected V2.17.0 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
32177 - oss-fuzz - OSS-Fuzz: Fuzzing the planet - Monorail af854a3a-2127-422b-91ae-364da2661108 bugs.chromium.org Exploit, Issue Tracking, Patch, Third Party Advisory
lists.debian.org/debian-lts-announce/2024/10/msg00021.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
libsepol/cil: cil_reset_classperms_set() should not reset classpermis… · SELinuxProject/selinux@c49a8ea · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
[SECURITY] Fedora 35 Update: libsepol-3.3-2.fc35 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Broken Link
cert-portal.siemens.com/productcert/html/ssa-202008.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
security.netapp.com/advisory/ntap-20250207-0004 af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
oss-fuzz-vulns/OSV-2021-536.yaml at main · google/oss-fuzz-vulns · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
[SECURITY] Fedora 35 Update: libsepol-3.3-2.fc35 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159521 Oracle Enterprise Linux Security Update for libsepol (ELSA-2021-4513)
  • 184819 Debian Security Update for libsepol (CVE-2021-36086)
  • 198754 Ubuntu Security Notification for libsepol Vulnerabilities (USN-5391-1)
  • 239808 Red Hat Update for libsepol (RHSA-2021:4513)
  • 282153 Fedora Security Update for libsepol (FEDORA-2021-67efe88c29)
  • 354312 Amazon Linux Security Advisory for libsepol : ALAS2022-2022-030
  • 354524 Amazon Linux Security Advisory for libsepol : ALAS2022-2022-170
  • 354704 Amazon Linux Security Advisory for libsepol : ALAS2022-2022-208
  • 355129 Amazon Linux Security Advisory for libsepol : ALAS2023-2023-017
  • 356236 Amazon Linux Security Advisory for libsepol : ALASSELINUX-NG-2023-001
  • 356437 Amazon Linux Security Advisory for libsepol : ALAS2-2023-2307
  • 356590 Amazon Linux Security Advisory for libsepol : ALAS2SELINUX-NG-2023-001
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 671260 EulerOS Security Update for libsepol (EulerOS-SA-2022-1174)
  • 671274 EulerOS Security Update for libsepol (EulerOS-SA-2022-1245)
  • 671334 EulerOS Security Update for libsepol (EulerOS-SA-2022-1257)
  • 671341 EulerOS Security Update for libsepol (EulerOS-SA-2022-1273)
  • 671370 EulerOS Security Update for libsepol (EulerOS-SA-2022-1309)
  • 671373 EulerOS Security Update for libsepol (EulerOS-SA-2022-1293)
  • 940148 AlmaLinux Security Update for libsepol (ALSA-2021:4513)
  • 960253 Rocky Linux Security Update for libsepol (RLSA-2021:4513)

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