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Debian LTS Advisory DLA-3930-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Sean Whitton
October 22, 2024 https://wiki.debian.org/LTS
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Package : libsepol
Version : 3.1-1+deb11u1
CVE ID : CVE-2021-36084 CVE-2021-36085 CVE-2021-36086 CVE-2021-36087
Debian Bug : 990526
Multiple vulnerabilities were discovered in libsepol, a set of userspace
utilities and libraries for manipulating SELinux policies.
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/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
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