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Debian DLA-2729-1 : asterisk - LTS security update

high Nessus Plugin ID 152215

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Synopsis

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

Description

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2729 advisory.

 It was discovered that there was an issue in the Asterisk telephony system. If the IAX2 channel driver received a packet that contained an unsupported media format, a crash could have occured. CVE-2021-32558 An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur. For Debian 9 Stretch, these problems have been fixed in version 1:13.14.1~dfsg-2+deb9u5. We recommend that you upgrade your asterisk packages.
 In addition, Asterisk are tracking this issue as AST-2021-008 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 this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the asterisk packages.

For Debian 9 Stretch, these problems have been fixed in version 1

See Also

https://www.debian.org/lts/security/2021/dla-2729

https://security-tracker.debian.org/tracker/CVE-2021-32558

https://packages.debian.org/source/stretch/asterisk

Plugin Details

Severity: High

ID: 152215

File Name: debian_DLA-2729.nasl

Version: 1.5

Type: local

Agent: unix

Published: 8/4/2021

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-32558

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/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:asterisk-mp3, p-cpe:/a:debian:debian_linux:asterisk, p-cpe:/a:debian:debian_linux:asterisk-mysql, p-cpe:/a:debian:debian_linux:asterisk-doc, p-cpe:/a:debian:debian_linux:asterisk-vpb, p-cpe:/a:debian:debian_linux:asterisk-dahdi, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:asterisk-voicemail, p-cpe:/a:debian:debian_linux:asterisk-dev, p-cpe:/a:debian:debian_linux:asterisk-ooh323, p-cpe:/a:debian:debian_linux:asterisk-modules, p-cpe:/a:debian:debian_linux:asterisk-voicemail-imapstorage, p-cpe:/a:debian:debian_linux:asterisk-voicemail-odbcstorage, p-cpe:/a:debian:debian_linux:asterisk-mobile, p-cpe:/a:debian:debian_linux:asterisk-config

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: 8/4/2021

Vulnerability Publication Date: 7/30/2021

Reference Information

CVE: CVE-2021-32558