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Oracle Linux: (CVE-2021-36087) ELSA-2021-4513: libsepol security update

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Oracle Linux: (CVE-2021-36087) ELSA-2021-4513: libsepol security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
07/01/2021
Created
11/19/2021
Added
11/17/2021
Modified
11/23/2022

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)

  • oracle-linux-upgrade-libsepol
  • oracle-linux-upgrade-libsepol-devel
  • oracle-linux-upgrade-libsepol-static

References

  • ELSA-2021-4513
  • CVE-2021-36087
  • USN-5391-1

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