Debian DLA-648-1 : c-ares security update

critical Nessus Plugin ID 93900

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Synopsis

The remote Debian host is missing a security update.

Description

Gzob Qq discovered that the query-building functions in c-ares, an asynchronous DNS request library would not correctly process crafted query names, resulting in a heap buffer overflow and potentially leading to arbitrary code execution.

For Debian 7 'Wheezy', these problems have been fixed in version 1.9.1-3+deb7u1.

We recommend that you upgrade your c-ares packages.

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

Solution

Upgrade the affected libc-ares-dev, and libc-ares2 packages.

Plugin Details

Severity: Critical

ID: 93900

File Name: debian_DLA-648.nasl

Version: 2.7

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/7/2016

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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 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:debian:debian_linux:libc-ares-dev, p-cpe:/a:debian:debian_linux:libc-ares2, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2016

Reference Information

CVE: CVE-2016-5180

Detections

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