Detections
Analytics

FreeBSD : asterisk -- An unsuspecting user could crash Asterisk with multiple hold/unhold requests (ca21f5e7-7228-11eb-8386-001999f8d30b)

critical Nessus Plugin ID 146605

Synopsis

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

Description

The Asterisk project reports :

Due to a signedness comparison mismatch, an authenticated WebRTC client could cause a stack overflow and Asterisk crash by sending multiple hold/unhold requests in quick succession.

Solution

Update the affected packages.

See Also

https://downloads.asterisk.org/pub/security/AST-2021-004.html

http://www.nessus.org/u?30656271

Plugin Details

Severity: Critical

ID: 146605

File Name: freebsd_pkg_ca21f5e7722811eb8386001999f8d30b.nasl

Version: 1.3

Type: local

Published: 2/19/2021

Updated: 4/5/2021

Supported Sensors: 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-2021-26714

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:freebsd:freebsd:asterisk16, p-cpe:/a:freebsd:freebsd:asterisk18, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 2/18/2021

Vulnerability Publication Date: 2/11/2021

Reference Information

CVE: CVE-2021-26714