Debian DLA-3567-1 : c-ares - LTS security update

medium Nessus Plugin ID 181511


The remote Debian host is missing a security-related update.


The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3567 advisory.

- Buffer overflow vulnerability in c-ares before 1_16_1 thru 1_17_0 via function ares_parse_soa_reply in ares_parse_soa_reply.c. (CVE-2020-22217)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade the c-ares packages.

For Debian 10 buster, this problem has been fixed in version 1.14.0-1+deb10u4.

See Also

Plugin Details

Severity: Medium

ID: 181511

File Name: debian_DLA-3567.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/17/2023

Updated: 10/31/2023

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

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.2

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

CVSS Score Source: CVE-2020-22217


Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/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:10.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/15/2023

Vulnerability Publication Date: 8/22/2023

Reference Information

CVE: CVE-2020-22217