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Debian dla-3930 : libsepol1 - security update

low Nessus Plugin ID 209513

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3930 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-3930-1 [email protected] https://www.debian.org/lts/security/ Sean Whitton October 22, 2024 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 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 Attachment:
 signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libsepol1 packages.

See Also

https://security-tracker.debian.org/tracker/source-package/libsepol

https://security-tracker.debian.org/tracker/CVE-2021-36084

https://security-tracker.debian.org/tracker/CVE-2021-36085

https://security-tracker.debian.org/tracker/CVE-2021-36086

https://security-tracker.debian.org/tracker/CVE-2021-36087

https://packages.debian.org/source/bullseye/libsepol

Plugin Details

Severity: Low

ID: 209513

File Name: debian_DLA-3930.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/22/2024

Updated: 10/22/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-36087

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libsepol1, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:sepol-utils, p-cpe:/a:debian:debian_linux:libsepol1-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/22/2024

Vulnerability Publication Date: 7/1/2021

Reference Information

CVE: CVE-2021-36084, CVE-2021-36085, CVE-2021-36086, CVE-2021-36087