CVE-2021-36084

Public on 2021-07-01

Modified on 2024-01-30

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).

Severity

Low

See what this means

CVSS v3 Base Score

3.3

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory
Amazon Linux 2 - Core	libsepol	2023-10-12 15:09	ALAS2-2023-2307
Amazon Linux 2 - Selinux-ng Extra	libsepol	2023-08-07 05:23	ALAS2SELINUX-NG-2023-001
Amazon Linux 2023	libsepol	2023-02-17 20:43	ALAS2023-2023-017

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	3.3	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
NVD	CVSSv2	2.1	AV:L/AC:L/Au:N/C:N/I:N/A:P
NVD	CVSSv3	3.3	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References

Red Hat: CVE-2021-36084 Mitre: CVE-2021-36084 FAQs regarding Amazon Linux ALAS/CVE Severity