CVE-2017-9372 Information

Description

PJSIP as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1 Certified Asterisk 13.13 before 13.13-cert4 and other products allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter.

CVSS Vector

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

Reference

http://downloads.asterisk.org/pub/security/AST-2017-002.txt http://www.debian.org/security/2017/dsa-3933 http://www.securityfocus.com/bid/98572 http://www.securitytracker.com/id/1038529 https://bugs.debian.org/863901

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5