Out-of-bounds Read Affecting libsepol package, versions *



    Attack Complexity Low

    Threat Intelligence

    EPSS 0.07% (29th percentile)
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3.3 low
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Red Hat
3.3 low

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  • Snyk ID SNYK-DEBIAN11-LIBSEPOL-1315629
  • published 1 Jul 2021
  • disclosed 1 Jul 2021

How to fix?

There is no fixed version for Debian:11 libsepol.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsepol package and not the libsepol package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.