CVE-2016-7551

high-risk
Published 2017-04-17

chain_sip in Asterisk Open Source 11.x before 11.23.1 and 13.x 13.11.1 and Certified Asterisk 11.6 before 11.6-cert15 and 13.8 before 13.8-cert3 allows remote attackers to cause a denial of service (port exhaustion).

Do I need to act?

~
6.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Debian Digium

References (10)

Mitigation http://downloads.asterisk.org/pub/security/AST-2016-007.html
Third Party Advisory http://www.debian.org/security/2016/dsa-3700
Issue Tracking https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838832
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1374733
Issue Tracking https://issues.asterisk.org/jira/browse/ASTERISK-26272
Mitigation http://downloads.asterisk.org/pub/security/AST-2016-007.html
Third Party Advisory http://www.debian.org/security/2016/dsa-3700
Issue Tracking https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838832
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1374733
Issue Tracking https://issues.asterisk.org/jira/browse/ASTERISK-26272
66
/ 100
high-risk
Severity 26/34 · High
Exploitability 9/34 · Low
Exposure 31/34 · Critical