VulnerabilityModified

CVE-2016-7551

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).

HIGH 7.5EPSS 5.47%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (5.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 5.47% probability · 92th percentile
CISA KEV: Not listed
Weakness: CWE-399
Affected: digium/asterisk · digium/certified asterisk · debian/debian linux
Source: cve@mitre.org

References

http://downloads.asterisk.org/pub/security/AST-2016-007.htmlMitigation, Vendor Advisory
http://www.debian.org/security/2016/dsa-3700Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838832Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1374733Issue Tracking, Patch
https://issues.asterisk.org/jira/browse/ASTERISK-26272Issue Tracking, Patch, Third Party Advisory
http://downloads.asterisk.org/pub/security/AST-2016-007.htmlMitigation, Vendor Advisory
http://www.debian.org/security/2016/dsa-3700Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838832Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1374733Issue Tracking, Patch
https://issues.asterisk.org/jira/browse/ASTERISK-26272Issue Tracking, Patch, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.