This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-36087 →

DEBIAN-CVE-2021-36087

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 beca...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 libsepol

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3-1"}]}]

Debian:13 libsepol

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3-1"}]}]

Debian:14 libsepol

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3-1"}]}]

References

advisory security-tracker.debian.org