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Ubuntu: USN-5391-1 (CVE-2021-36087): libsepol vulnerabilities

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Ubuntu: USN-5391-1 (CVE-2021-36087): libsepol vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
07/01/2021
Created
04/29/2022
Added
04/28/2022
Modified
04/28/2022

Description

The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). This occurs because there is sometimes a lack of checks for invalid statements in an optional block.

Solution(s)

  • ubuntu-upgrade-libsepol1
  • ubuntu-upgrade-sepol-utils

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