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RHEL 9 : openssh (RHSA-2023:2645)

medium Nessus Plugin ID 175467

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Synopsis

The remote Red Hat host is missing a security update for openssh.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:2645 advisory.

 - openssh: the functions order_hostkeyalgs() and list_hostkey_types() leads to double-free vulnerability (CVE-2023-25136)

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 RHEL openssh package based on the guidance in RHSA-2023:2645.

See Also

http://www.nessus.org/u?77319014

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=2167636

https://access.redhat.com/errata/RHSA-2023:2645

Plugin Details

Severity: Medium

ID: 175467

File Name: redhat-RHSA-2023-2645.nasl

Version: 1.3

Type: local

Agent: unix

Published: 5/13/2023

Updated: 4/28/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.8

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

CVSS Score Source: CVE-2023-25136

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:openssh, p-cpe:/a:redhat:enterprise_linux:openssh-askpass, p-cpe:/a:redhat:enterprise_linux:openssh-clients, p-cpe:/a:redhat:enterprise_linux:openssh-keycat, p-cpe:/a:redhat:enterprise_linux:openssh-server, p-cpe:/a:redhat:enterprise_linux:pam_ssh_agent_auth

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/9/2023

Vulnerability Publication Date: 2/3/2023

Reference Information

CVE: CVE-2023-25136

CWE: 401

IAVA: 2023-A-0073-S

RHSA: 2023:2645