Vulnerability CVE-2017-9372
Published: 2017-06-02

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.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Digium -> Open source 
Digium -> Certified asterisk 

 References:
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
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