Debian dla-4156 : openssh-client - security update

medium Nessus Plugin ID 235598

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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 dla-4156 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4156-1 [email protected] https://www.debian.org/lts/security/ Colin Watson May 08, 2025 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : openssh Version : 1:8.4p1-5+deb11u5 CVE ID : CVE-2025-32728 Debian Bug : 1102603

Tim Rice discovered that the DisableForwarding directive was documented as disabling X11 and agent forwarding but it failed to do so.

For Debian 11 bullseye, this problem has been fixed in version 1:8.4p1-5+deb11u5.

We recommend that you upgrade your openssh packages.

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

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 this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the openssh-client packages.

Plugin Details

Severity: Medium

ID: 235598

File Name: debian_DLA-4156.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 5/8/2025

Updated: 5/8/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 2.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2025-32728

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ssh-askpass-gnome, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:openssh-server-udeb, p-cpe:/a:debian:debian_linux:ssh, p-cpe:/a:debian:debian_linux:openssh-sftp-server, p-cpe:/a:debian:debian_linux:openssh-server, p-cpe:/a:debian:debian_linux:openssh-tests, p-cpe:/a:debian:debian_linux:openssh-client, p-cpe:/a:debian:debian_linux:openssh-client-udeb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2025

Vulnerability Publication Date: 4/8/2025

Reference Information

CVE: CVE-2025-32728

IAVA: 2025-A-0258

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