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

medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.1% (40th percentile)
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NVD
3.3 low
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Red Hat
3.3 low

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  • Snyk ID SNYK-CENTOS8-LIBSEPOL-2146959
  • published 26 Jul 2021
  • disclosed 19 Apr 2021
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Introduced: 19 Apr 2021

CVE-2021-36084 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

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

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsepol package and not the libsepol 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 __cil_verify_classpermission and __cil_pre_verify_helper).