CVE-2018-12228

moderate-risk
Published 2018-06-12

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.

Do I need to act?

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0.42% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Sangoma

References (6)

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
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
31
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal