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Debian DSA-5368-1 : libreswan - security update
medium Nessus Plugin ID 172090
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Synopsis
The remote Debian host is missing a security-related update.Description
The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dsa-5368 advisory.- Libreswan 4.9 allows remote attackers to cause a denial of service (assert failure and daemon restart) via crafted TS payload with an incorrect selector length. (CVE-2023-23009)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade the libreswan packages.For the stable distribution (bullseye), this problem has been fixed in version 4.3-1+deb11u3.
See Also
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1031821
https://security-tracker.debian.org/tracker/source-package/libreswan
https://www.debian.org/security/2023/dsa-5368
Plugin Details
Severity: Medium
ID: 172090
File Name: debian_DSA-5368.nasl
Version: 1.2
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 3/3/2023
Updated: 8/31/2023
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2023-23009
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:libreswan, cpe:/o:debian:debian_linux:11.0
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: 3/3/2023
Vulnerability Publication Date: 2/21/2023
Reference Information
CVE: CVE-2023-23009