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AlmaLinux 9.6 [TuxCare] Security Update: openssh / openssh-askpass / openssh-clients / openssh-keycat / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1767955216)

low Nessus Plugin ID 361618

Synopsis

The AlmaLinux host is missing one or more security updates.

Description

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1767955216 advisory.

 - ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.) (CVE-2025-61984)

 - ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used. (CVE-2025-61985)

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 based on the guidance in TuxCare advisory ALMALINUX9.6:CLSA-2026:1767955216.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1767955216

http://www.nessus.org/u?29fc176e

Plugin Details

Severity: Low

ID: 361618

File Name: tuxcare_alma_linux_9.6_CLSA-2026-1767955216.nasl

Version: 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.1

Percentile: 53.65

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 2.4

Temporal Score: 1.9

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

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

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/9/2026

Vulnerability Publication Date: 10/6/2025

Reference Information

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

CLSA: 2026:1767955216