Medium severity · published Jun 12, 2018
CVE-2018-12228
An issue was discovered in Asterisk Open Source 15.x before 15.4.1
6.5
CVSS
6.5%
EPSS
No
On KEV
Description
An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.5% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asterisk · Sangoma
15.0 before 15.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12228
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-12228
Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2018-007.html
Third Party Advisory
http://www.securityfocus.com/bid/104457
Exploit
https://issues.asterisk.org/jira/browse/ASTERISK-27807
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