FreeBSD : asterisk -- RTP/RTCP information leak (c2ea3b31-9d75-11e7-bb13-001999f8d30b)

high Nessus Plugin ID 103346

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Synopsis

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

Description

The Asterisk project reports :

This is a follow up advisory to AST-2017-005.

Insufficient RTCP packet validation could allow reading stale buffer contents and when combined with the 'nat' and 'symmetric_rtp' options allow redirecting where Asterisk sends the next RTCP report.

The RTP stream qualification to learn the source address of media always accepted the first RTP packet as the new source and allowed what AST-2017-005 was mitigating. The intent was to qualify a series of packets before accepting the new source address.

The RTP/RTCP stack will now validate RTCP packets before processing them.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 103346

File Name: freebsd_pkg_c2ea3b319d7511e7bb13001999f8d30b.nasl

Version: 3.7

Type: local

Family: FreeBSD Local Security Checks

Published: 9/20/2017

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:asterisk11, p-cpe:/a:freebsd:freebsd:asterisk13, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 9/19/2017

Vulnerability Publication Date: 9/1/2017

Reference Information

CVE: CVE-2017-14099

Detections

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