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Debian DSA-5388-1 : haproxy - security update

high Nessus Plugin ID 174275

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5388 advisory.

 It was reported that HAProxy, a fast and reliable load balancing reverse proxy, does not properly initialize connection buffers when encoding the FCGI_BEGIN_REQUEST record. A remote attacker can take advantage of this flaw to cause an information leak. For the stable distribution (bullseye), this problem has been fixed in version 2.2.9-2+deb11u5. We recommend that you upgrade your haproxy packages. For the detailed security status of haproxy please refer to its security tracker page at: https://security- tracker.debian.org/tracker/haproxy

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

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 haproxy packages.

For the stable distribution (bullseye), this problem has been fixed in version 2.2.9-2+deb11u5.

See Also

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

https://www.debian.org/security/2023/dsa-5388

https://security-tracker.debian.org/tracker/CVE-2023-0836

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

Plugin Details

Severity: High

ID: 174275

File Name: debian_DSA-5388.nasl

Version: 1.1

Type: local

Agent: unix

Published: 4/14/2023

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-0836

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:haproxy-doc, p-cpe:/a:debian:debian_linux:vim-haproxy, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:haproxy

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/13/2023

Vulnerability Publication Date: 3/29/2023

Reference Information

CVE: CVE-2023-0836