Rocky Linux 9 : OpenSSH regreSSHion (CVE-2024-6387)

high Nessus Plugin ID 206464

Synopsis

The remote Rocky Linux host is missing a security update.

Description

The remote Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the 'Rocky Linux 9 - CVE-2024-6387: regreSSHion' news article.

* sshd: Signal handler race condition that can lead to a potential remote code execution.
(CVE-2024-6387)

Note this plugin only checks the base OpenSSH package. Nessus has not tested for this issue but has instead relied only on the application's self-reported version number. There are mitigations available which this plugin is unable to test for and there may also be other packages that need to be updated, but are not explicitly specified in the news article.

Solution

Update the affected packages as per the vendor documentation.

See Also

https://rockylinux.org/news/2024-07-01-openssh-sigalrm-regression

https://access.redhat.com/errata/RHSA-2024:4312

https://bugzilla.redhat.com/show_bug.cgi?id=2294604

Plugin Details

Severity: High

ID: 206464

File Name: rocky_linux_CVE-2024-6387.nasl

Version: 1.2

Type: local

Published: 9/3/2024

Updated: 9/4/2024

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.4

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2024-6387

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:openssh

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/3/2024

Vulnerability Publication Date: 6/26/2024

Reference Information

CVE: CVE-2024-6387