Use After Free Affecting libsepol-static package, versions <0:2.9-3.el8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.46% (38th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS8-LIBSEPOLSTATIC-2147229
  • published26 Jul 2021
  • disclosed19 Apr 2021

Introduced: 19 Apr 2021

CVE-2021-36085  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 libsepol-static to version 0:2.9-3.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsepol-static package and not the libsepol-static package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __verify_map_perm_classperms and hashtab_map).

CVSS Base Scores

version 3.1