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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.

 - logger.c in the logger plugin in WeeChat before 1.9.1 allows a crash via strftime date/time specifiers, because a buffer is not initialized. (CVE-2017-14727)

 - irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a malformed IRC message 324 (channel mode). (CVE-2020-8955)

 - A Vulnerability of LG Electronic web OS TV Emulator could allow an attacker to escalate privileges and overwrite certain files. This vulnerability is due to wrong environment setting. An attacker could exploit this vulnerability through crafted configuration files and executable files. (CVE-2020-9759)

 - An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick. (CVE-2020-9760)

 - WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash) via a crafted WebSocket frame that trigger an out-of-bounds read in plugins/relay/relay-websocket.c in the Relay plugin.
 (CVE-2021-40516)

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: 1.0

Type: local

Agent: unix

Published: 10/16/2023

Updated: 10/16/2023

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

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