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Debian LTS: DLA-3930-1: libsepol Security Advisory Updates

debian lts
Calendar Grey October 22, 2024
Dist Debian Esm H88
Multiple vulnerabilities in libsepol affect SELinux policies. Upgrade recommended to prevent arbitrary code execution and service denial.
Multiple vulnerabilities were discovered in libsepol, a set of userspace utilities and libraries for manipulating SELinux policies
Topics%20covered

Topics Covered

No topics assigned

Summary

CVE-2021-36084, CVE-2021-36085, CVE-2021-36086

Three use-after-free problems were discovered in the CIL compiler.
These could lead to data corruption, denial of service or possibly
arbitrary code execution.

CVE-2021-36087

A heap-based buffer over-read was discovered in the CIL compiler.
This could lead to confidentiality or integrity violations, or
crashes.

For Debian 11 bullseye, these problems have been fixed in version
3.1-1+deb11u1.

We recommend that you upgrade your libsepol packages.

For the detailed security status of libsepol please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libsepol

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
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Critical

Package: libsepol
Version: 3.1-1+deb11u1
CVE ID: CVE-2021-36084 CVE-2021-36085 CVE-2021-36086 CVE-2021-36087
Debian Bug: 990526

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Topics Covered

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