CVE-2018-12228

Name: CVE-2018-12228
Creator: NVD / NIST
Published: 2018-06-12T04:29:00.33+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.78%

Last modified Jun 17, 2026

CVE-2018-12228 is a vulnerability of currently unknown severity. 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. EPSS estimates a 6.78% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

6.78%

93.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Sangoma	Asterisk	>= 15.0, < 15.4.1

References

http://downloads.asterisk.org/pub/security/AST-2018-007.htmlVendor Advisory
http://www.securityfocus.com/bid/104457Third Party Advisory, VDB Entry
https://issues.asterisk.org/jira/browse/ASTERISK-27807Exploit, Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2018-007.htmlVendor Advisory
http://www.securityfocus.com/bid/104457Third Party Advisory, VDB Entry
https://issues.asterisk.org/jira/browse/ASTERISK-27807Exploit, Vendor Advisory

Timeline

Published: Jun 12, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12228?

How severe is CVE-2018-12228?

Severity scoring for CVE-2018-12228 is pending analysis. The EPSS model estimates a 6.78% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12228?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12228?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST