CVE-2016-2316 Information

Description

chan_sip in Asterisk Open Source 1.8.x 11.x before 11.21.1 12.x and 13.x before 13.7.1 and Certified Asterisk 1.8.28 11.6 before 11.6-cert12 and 13.1 before 13.1-cert3 when the timert1 sip.conf configuration is set to a value greater than 1245 allows remote attackers to cause a denial of service (file descriptor consumption) via vectors related to large retransmit timeout values.

CVSS Vector

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

Reference

http://downloads.asterisk.org/pub/security/AST-2016-002.html http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177409.html http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177422.html http://www.debian.org/security/2016/dsa-3700 http://www.securityfocus.com/bid/82651 http://www.securitytracker.com/id/1034930

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9