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Ubuntu 14.04 LTS / 16.04 LTS : c-ares vulnerability (USN-3143-1)

critical Nessus Plugin ID 95428

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Synopsis

The remote Ubuntu host is missing a security update.

Description

Gzob Qq discovered that c-ares incorrectly handled certain hostnames.
A remote attacker could use this issue to cause applications using c-ares to crash, resulting in a denial of service, or possibly execute arbitrary code.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libc-ares-dev and / or libc-ares2 packages.

See Also

https://ubuntu.com/security/notices/USN-3143-1

Plugin Details

Severity: Critical

ID: 95428

File Name: ubuntu_USN-3143-1.nasl

Version: 3.8

Type: local

Agent: unix

Published: 12/1/2016

Updated: 10/20/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, 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-2016-5180

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: p-cpe:/a:canonical:ubuntu_linux:libc-ares2, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libc-ares-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/30/2016

Vulnerability Publication Date: 10/3/2016

Reference Information

CVE: CVE-2016-5180

USN: 3143-1