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RockyLinux 9 : corosync (RLSA-2026:13673)

high Nessus Plugin ID 312325

Synopsis

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

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:13673 advisory.

 * corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet (CVE-2026-35091)

 * corosync: Corosync: Denial of Service via integer overflow in join message validation (CVE-2026-35092)

Tenable has extracted the preceding description block directly from the RockyLinux 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.rockylinux.org/RLSA-2026:13673

https://bugzilla.redhat.com/show_bug.cgi?id=2453813

https://bugzilla.redhat.com/show_bug.cgi?id=2453814

Plugin Details

Severity: High

ID: 312325

File Name: rocky_linux_RLSA-2026-13673.nasl

Version: 1.1

Type: Local

Published: 5/6/2026

Updated: 5/6/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-35091

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

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

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:corosync-vqsim, p-cpe:/a:rocky:linux:corosync-debuginfo, p-cpe:/a:rocky:linux:corosynclib-debuginfo, p-cpe:/a:rocky:linux:corosync-debugsource, p-cpe:/a:rocky:linux:corosynclib, p-cpe:/a:rocky:linux:corosynclib-devel, cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:corosync, p-cpe:/a:rocky:linux:corosync-vqsim-debuginfo

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: 5/6/2026

Vulnerability Publication Date: 1/8/2026

Reference Information

CVE: CVE-2026-35091, CVE-2026-35092