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Debian dla-3471 : libc-ares-dev - security update

medium Nessus Plugin ID 177640

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3471 advisory.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3471-1 [email protected] https://www.debian.org/lts/security/ Anton Gladky June 26, 2023 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : c-ares Version : 1.14.0-1+deb10u3 CVE ID : CVE-2023-31130 CVE-2023-32067

 Two vunerabilities were discovered in c-ares, an asynchronous name resolver library:

 CVE-2023-31130

 ares_inet_net_pton() is found to be vulnerable to a buffer underflow for certain ipv6 addresses, in particular 0::00:00:00/2 was found to cause an issue. c-ares only uses this function internally for configuration purposes, however external usage for other purposes may cause more severe issues.

 CVE-2023-32067

 Target resolver may erroneously interprets a malformed UDP packet with a length of 0 as a graceful shutdown of the connection, which could cause a denial of service.

 For Debian 10 buster, these problems have been fixed in version 1.14.0-1+deb10u3.

 We recommend that you upgrade your c-ares packages.

 For the detailed security status of c-ares please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/c-ares

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the libc-ares-dev packages.

See Also

https://security-tracker.debian.org/tracker/source-package/c-ares

https://security-tracker.debian.org/tracker/CVE-2023-31130

https://security-tracker.debian.org/tracker/CVE-2023-32067

https://packages.debian.org/source/buster/c-ares

Plugin Details

Severity: Medium

ID: 177640

File Name: debian_DLA-3471.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/27/2023

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.4

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

CVSS Score Source: CVE-2023-31130

CVSS v3

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.6

Vector: CVSS:3.0/AV:L/AC:H/PR:H/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:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:libc-ares-dev, p-cpe:/a:debian:debian_linux:libc-ares2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2023

Vulnerability Publication Date: 5/24/2023

Reference Information

CVE: CVE-2023-31130, CVE-2023-32067