High severity · published Oct 10, 2017
CVE-2017-14603
In Asterisk 11.x before 11.25.3, 13.x before 13.17.2, and 14.x before 14.6.2 and Certified Asterisk 11.x before 11.6-cert18 and 13.x before 13.13-cert6, insufficient RTCP packet…
7.5
CVSS
3.2%
EPSS
No
On KEV
Description
In Asterisk 11.x before 11.25.3, 13.x before 13.17.2, and 14.x before 14.6.2 and Certified Asterisk 11.x before 11.6-cert18 and 13.x before 13.13-cert6, insufficient RTCP packet validation could allow reading stale buffer contents and when combined with the "nat" and "symmetric_rtp" options allow redirecting where Asterisk sends the next RTCP report.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asterisk · Digium
13.0.0; 13.0.0; 13.0.0; 13.0.0; 13.0.1; 13.0.2; +34 more · source: NVD
CA
Certified Asterisk · Digium
11.6; 11.6; 11.6; 11.6; 11.6; 11.6; +22 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14603
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14603
Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2017-008.html
Third Party Advisory
http://www.debian.org/security/2017/dsa-3990
Issue Tracking
https://issues.asterisk.org/jira/browse/ASTERISK-27274
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