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Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : Corosync vulnerability (USN-7478-1)

critical Nessus Plugin ID 235146

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by a vulnerability as referenced in the USN-7478-1 advisory.

 It was discovered that Corosync incorrectly handled certain large UDP packets. If encryption is disabled, or an attacker knows the encryption key, this issue could be used to cause Corosync to crash, resulting in a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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.

See Also

https://ubuntu.com/security/notices/USN-7478-1

Plugin Details

Severity: Critical

ID: 235146

File Name: ubuntu_USN-7478-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/5/2025

Updated: 5/5/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2025-30472

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/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:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libcfg7, p-cpe:/a:canonical:ubuntu_linux:libcorosync-common-dev, p-cpe:/a:canonical:ubuntu_linux:libcmap4, cpe:/o:canonical:ubuntu_linux:24.10, p-cpe:/a:canonical:ubuntu_linux:libsam-dev, p-cpe:/a:canonical:ubuntu_linux:libcpg-dev, p-cpe:/a:canonical:ubuntu_linux:libsam4, p-cpe:/a:canonical:ubuntu_linux:corosync-notifyd, p-cpe:/a:canonical:ubuntu_linux:libcorosync-common4, p-cpe:/a:canonical:ubuntu_linux:libvotequorum8, p-cpe:/a:canonical:ubuntu_linux:libquorum5, p-cpe:/a:canonical:ubuntu_linux:libvotequorum-dev, p-cpe:/a:canonical:ubuntu_linux:libcmap-dev, p-cpe:/a:canonical:ubuntu_linux:libquorum-dev, p-cpe:/a:canonical:ubuntu_linux:libcpg4, p-cpe:/a:canonical:ubuntu_linux:corosync-vqsim, p-cpe:/a:canonical:ubuntu_linux:libcfg-dev, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:corosync

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/5/2025

Vulnerability Publication Date: 3/22/2025

Reference Information

CVE: CVE-2025-30472

USN: 7478-1