CVE-2021-36085

libsepol: The libsepol library provides an API for the manipulation of SELinux binary policies

CVE-2021-36085 is fixed in 9 products on 1 platform, first by libsepol1 2.7-1ubuntu0.1, released June 30, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
3.3
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0045
39th percentile

The libsepol library provides an API for the manipulation of SELinux binary policies. It is used by checkpolicy (the policy compiler) and similar tools, as well as by programs like load_policy that need to perform specific transformations on binary policies (for example, customizing policy boolean settings). Security Fix(es): * libsepol: use-after-free in __cil_verify_classperms() (CVE-2021-36084) * libsepol: use-after-free in __cil_verify_classperms() (CVE-2021-36085) * libsepol: use-after-free in cil_reset_classpermission() (CVE-2021-36086) * libsepol: heap-based buffer overflow in ebitmap_match_any() (CVE-2021-36087) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
libsepol · RHEL 8 0:2.9-3.el8 RHSA-2021:4513 Nov 9, 2021
libsepol · almalinux 8 2.9-3.el8 ALSA-2021:4513 Nov 9, 2021
libsepol · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol · ol 8 0:2.9-3.el8 ELSA-2021-4513 Nov 16, 2021
libsepol · rocky 8 0:2.9-3.el8 RLSA-2021:4513 Nov 9, 2021
libsepol-debuginfo · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol-debugsource · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol-devel · RHEL 8 0:2.9-3.el8 RHSA-2021:4513 Nov 9, 2021
libsepol-devel · almalinux 8 2.9-3.el8 ALSA-2021:4513 Nov 9, 2021
libsepol-devel · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol-devel · ol 8 0:2.9-3.el8 ELSA-2021-4513 Nov 16, 2021
libsepol-static · RHEL 8 0:2.9-3.el8 RHSA-2021:4513 Nov 9, 2021
libsepol-static · almalinux 8 2.9-3.el8 ALSA-2021:4513 Nov 9, 2021
libsepol-static · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol-static · ol 8 0:2.9-3.el8 ELSA-2021-4513 Nov 16, 2021
libsepol-utils · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol-utils-debuginfo · amzn 2023 3.4-3.amzn2023.0.3 ALAS2023-2023-017 Feb 17, 2023
libsepol1 · Ubuntu 18.04.6 LTS (bionic) 2.7-1ubuntu0.1 libsepol1 2.7-1ubuntu0.1 Jun 30, 2021
libsepol1 · Ubuntu 20.04 LTS (focal) 3.0-1ubuntu0.1 libsepol1 3.0-1ubuntu0.1 Jun 30, 2021
sepol-utils · Ubuntu 18.04.6 LTS (bionic) 2.7-1ubuntu0.1 sepol-utils 2.7-1ubuntu0.1 Jun 30, 2021
sepol-utils · Ubuntu 20.04 LTS (focal) 3.0-1ubuntu0.1 sepol-utils 3.0-1ubuntu0.1 Jun 30, 2021

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