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Ubuntu 14.04 LTS / 16.04 LTS : Irssi vulnerabilities (USN-3527-1)

critical Nessus Plugin ID 105750

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Synopsis

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

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3527-1 advisory.

 Joseph Bisch discovered that Irssi incorrectly handled incomplete escape codes. If a user were tricked into using malformed commands or opening malformed files, an attacker could use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2018-5205)

 Joseph Bisch discovered that Irssi incorrectly handled settings the channel topic without specifying a sender. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2018-5206)

 Joseph Bisch discovered that Irssi incorrectly handled incomplete variable arguments. If a user were tricked into using malformed commands or opening malformed files, an attacker could use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2018-5207)

 Joseph Bisch discovered that Irssi incorrectly handled completing certain strings. An attacker could use this issue to cause Irssi to crash, resulting in a denial of service, or possibly execute arbitrary code.
 (CVE-2018-5208)

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 irssi and / or irssi-dev packages.

See Also

https://ubuntu.com/security/notices/USN-3527-1

Plugin Details

Severity: Critical

ID: 105750

File Name: ubuntu_USN-3527-1.nasl

Version: 3.10

Type: local

Agent: unix

Published: 1/11/2018

Updated: 8/27/2024

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: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2018-5208

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:irssi, p-cpe:/a:canonical:ubuntu_linux:irssi-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/10/2018

Vulnerability Publication Date: 1/6/2018

Reference Information

CVE: CVE-2018-5205, CVE-2018-5206, CVE-2018-5207, CVE-2018-5208

USN: 3527-1