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Vulnerability · Published Jul 1, 2021 · Assigned by mitre

CVE-2021-36084

Low 3.3

In plain English

A low-severity security flaw in the libsepol package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)3.3Low
Exploit odds (30 days)0.5%top 60.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libsepol2.9-3.el8ALSA-2021:4513
AlmaLinux:8libsepol-devel2.9-3.el8ALSA-2021:4513
AlmaLinux:8libsepol-static2.9-3.el8ALSA-2021:4513
Debian:12libsepol3.3-1DEBIAN-CVE-2021-36084
Debian:13libsepol3.3-1DEBIAN-CVE-2021-36084
Debian:14libsepol3.3-1DEBIAN-CVE-2021-36084
Rocky Linux:8libsepol0:2.9-3.el8RLSA-2021:4513

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References