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Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : WeeChat vulnerabilities (USN-5258-1)

critical Nessus Plugin ID 183150

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5258-1 advisory.

 Stuart Nevans Locke discovered that WeeChat's relay plugin insecurely handled malformed websocket frames.
 A remote attacker in control of a server could possibly use this issue to cause denial of service in a client. (CVE-2021-40516)

 Stuart Nevans Locke discovered that WeeChat insecurely handled certain IRC messages. A remote attacker in control of a server could possibly use this issue to cause denial of service in a client. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2020-9760)

 Stuart Nevans Locke discovered that WeeChat insecurely handled certain IRC messages. A remote unauthenticated attacker could possibly use these issues to cause denial of service in a client. These issues only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2020-9759, CVE-2020-8955)

 Joseph Bisch discovered that WeeChat's logger incorrectly handled certain memory operations when handling log file names. A remote attacker could possibly use this issue to cause denial of service in a client.
 This issue only affected Ubuntu 16.04 ESM. (CVE-2017-14727)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-5258-1

Plugin Details

Severity: Critical

ID: 183150

File Name: ubuntu_USN-5258-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/16/2023

Updated: 8/28/2024

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: High

Base Score: 9.3

Temporal Score: 7.3

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

CVSS Score Source: CVE-2020-9759

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

CVSS Score Source: CVE-2020-9760

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:weechat-tcl, p-cpe:/a:canonical:ubuntu_linux:weechat-core, p-cpe:/a:canonical:ubuntu_linux:weechat-guile, p-cpe:/a:canonical:ubuntu_linux:weechat-perl, p-cpe:/a:canonical:ubuntu_linux:weechat-plugins, p-cpe:/a:canonical:ubuntu_linux:weechat, cpe:/o:canonical:ubuntu_linux:18.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:weechat-curses, p-cpe:/a:canonical:ubuntu_linux:weechat-dev, p-cpe:/a:canonical:ubuntu_linux:weechat-php, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:weechat-ruby, cpe:/o:canonical:ubuntu_linux:20.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:weechat-headless, p-cpe:/a:canonical:ubuntu_linux:weechat-lua, p-cpe:/a:canonical:ubuntu_linux:weechat-python

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: 2/4/2022

Vulnerability Publication Date: 9/23/2017

Reference Information

CVE: CVE-2017-14727, CVE-2020-8955, CVE-2020-9759, CVE-2020-9760, CVE-2021-40516

USN: 5258-1