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CentOS Linux 8.4 [TuxCare] Security Update: openssh / openssh-askpass / openssh-cavs / openssh-clients / etc (CENTOS8.4:CLSA-2026:1788885099)

medium Nessus Plugin ID 359969

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1788885099 advisory.

 - In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote- forwarding operations are concurrent. (CVE-2026-73282)

Note that Nessus has not tested for this issue 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 CENTOS8.4:CLSA-2026:1788885099.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1788885099

http://www.nessus.org/u?27c00321

Plugin Details

Severity: Medium

ID: 359969

File Name: tuxcare_centos_8.4_CLSA-2026-1788885099.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 8.1

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-73282

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-73282

CLSA: 2026:1788885099