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Ubuntu 18.04 ESM : NTP vulnerability (USN-4229-2)

critical Nessus Plugin ID 183644

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-4229-2 advisory.

 - Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command- line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source. (CVE-2018-12327)

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 ntp, ntpdate and / or sntp packages.

See Also

https://ubuntu.com/security/notices/USN-4229-2

Plugin Details

Severity: Critical

ID: 183644

File Name: ubuntu_USN-4229-2.nasl

Version: 1.0

Type: local

Agent: unix

Published: 10/21/2023

Updated: 10/21/2023

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: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2018-12327

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:18.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:ntp, p-cpe:/a:canonical:ubuntu_linux:ntpdate, p-cpe:/a:canonical:ubuntu_linux:sntp

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: 3/15/2021

Vulnerability Publication Date: 6/20/2018

Reference Information

CVE: CVE-2018-12327

IAVA: 2018-A-0256-S

USN: 4229-2