FreeBSD : asterisk -- Remote Crash Vulnerability in PJSIP channel driver (ffa364e1-ebf5-11eb-aef1-0897988a1c07)

medium Nessus Plugin ID 152072

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Synopsis

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

Description

The Asterisk project reports :

When Asterisk receives a re-INVITE without SDP after having sent a BYE request a crash will occur. This occurs due to the Asterisk channel no longer being present while code assumes it is.

Solution

Update the affected packages.

See Also

https://downloads.asterisk.org/pub/security/AST-2021-007.html

http://www.nessus.org/u?d3231365

Plugin Details

Severity: Medium

ID: 152072

File Name: freebsd_pkg_ffa364e1ebf511ebaef10897988a1c07.nasl

Version: 1.3

Type: local

Published: 7/26/2021

Updated: 8/10/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-31878

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Temporal Vector: 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: 7/23/2021

Vulnerability Publication Date: 4/6/2021

Reference Information

CVE: CVE-2021-31878