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AlmaLinux 10 : openssh (ALSA-2025:23479)

low Nessus Plugin ID 279600

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Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:23479 advisory.

 * openssh: OpenSSH: Control characters in usernames can lead to code execution via ProxyCommand (CVE-2025-61984)
 * openssh: OpenSSH: Null character in ssh:// URI can lead to code execution via ProxyCommand (CVE-2025-61985)

Tenable has extracted the preceding description block directly from the AlmaLinux 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

Update the affected packages.

See Also

https://errata.almalinux.org/10/ALSA-2025-23479.html

https://access.redhat.com/errata/RHSA-2025:23479

Plugin Details

Severity: Low

ID: 279600

File Name: alma_linux_ALSA-2025-23479.nasl

Version: 1.1

Type: local

Published: 12/23/2025

Updated: 12/23/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.0

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-61985

CVSS v3

Risk Factor: Low

Base Score: 3.6

Temporal Score: 3.3

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

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

Vulnerability Information

CPE: p-cpe:/a:alma:linux:openssh-clients, cpe:/o:alma:linux:10::appstream, p-cpe:/a:alma:linux:openssh, cpe:/o:alma:linux:10::sap_hana, p-cpe:/a:alma:linux:openssh-server, p-cpe:/a:alma:linux:openssh-askpass, cpe:/o:alma:linux:10, p-cpe:/a:alma:linux:openssh-keycat, cpe:/o:alma:linux:10::nfv, cpe:/o:alma:linux:10::baseos, p-cpe:/a:alma:linux:openssh-keysign, cpe:/o:alma:linux:10::sap, cpe:/o:alma:linux:10::supplementary, cpe:/o:alma:linux:10::resilientstorage, cpe:/o:alma:linux:10::powertools, cpe:/o:alma:linux:10::highavailability, cpe:/o:alma:linux:10::realtime

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/17/2025

Vulnerability Publication Date: 10/6/2025

Reference Information

CVE: CVE-2025-61984, CVE-2025-61985

CWE: 158, 159

RHSA: 2025:23479