Detections
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Ubuntu 16.04 LTS / 20.04 LTS / 22.04 LTS : pcs vulnerabilities (USN-7614-1)

high Nessus Plugin ID 241351

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Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7614-1 advisory.

 Cedric Buissart discovered that pcs did not correctly handle certain parameters. An attacker could possibly use this issue to leak sensitive information or elevate their privileges. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-1086)

 Ondrej Mular discovered that pcs did not correctly handle Unix socket permissions. An attacker could possibly use this issue to elevate their privileges. This issue only affected Ubuntu 22.04 LTS.
 (CVE-2022-2735)

 It was discovered that pcs did not correctly handle PAM authentication. An attacker could possibly use this issue to bypass authentication mechanisms. This issue only affected Ubuntu 20.04 LTS and

 Ubuntu 22.04 LTS. (CVE-2022-1049)

 It was discovered that pcs did not correctly handle the validation of Node names. An attacker could possibly use this issue to execute a cross-site scripting (XSS) attack. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-2661)

Tenable has extracted the preceding description block directly from the Ubuntu 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 pcs and / or pcs-snmp packages.

See Also

https://ubuntu.com/security/notices/USN-7614-1

Plugin Details

Severity: High

ID: 241351

File Name: ubuntu_USN-7614-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 7/4/2025

Updated: 7/4/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2022-1049

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:pcs, p-cpe:/a:canonical:ubuntu_linux:pcs-snmp

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/2/2025

Vulnerability Publication Date: 3/20/2017

Reference Information

CVE: CVE-2017-2661, CVE-2018-1086, CVE-2022-1049, CVE-2022-2735

USN: 7614-1