High severity · published Dec 2, 2017
CVE-2017-17090
An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older
7.5
CVSS
82.2%
EPSS
No
On KEV
Description
An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)82.2% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asterisk · Digium
through 13.8.2; through 14.7.2; through 15.1.2 · source: NVD
CA
Certified Asterisk · Digium
through 13.13; 13.13; 13.13; 13.13; 13.13; 13.13; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-17090
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-17090
Vendor Advisory
http://downloads.digium.com/pub/security/AST-2017-013.html
Third Party Advisory
http://www.securityfocus.com/bid/102023
www.securitytracker.com
http://www.securitytracker.com/id/1039948
Issue Tracking
https://issues.asterisk.org/jira/browse/ASTERISK-27452
lists.debian.org
https://lists.debian.org/debian-lts-announce/2017/12/msg00028.html
www.debian.org
https://www.debian.org/security/2017/dsa-4076
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