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CVE-2017-16672

5.9 · MEDIUM

An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7.

Published Nov 9, 2017CWE-772EPSS 4.68%

Overview

CVE-2017-16672 is a medium-severity vulnerability. It was published on November 9, 2017 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. A memory leak occurs when an Asterisk pjsip session object is created and that call gets rejected before the session itself is fully established. When this happens the session object never gets destroyed. Eventually Asterisk can run out of memory and crash.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdownloads.digium.com/pub/security/AST-2017-011.htmlRefwww.securityfocus.com/bid/101765Refissues.asterisk.org/jira/browse/ASTERISK-27345Refsecurity.gentoo.org/glsa/201811-11Refwww.debian.org/security/2017/dsa-4076Refdownloads.digium.com/pub/security/AST-2017-011.htmlRefwww.securityfocus.com/bid/101765Refissues.asterisk.org/jira/browse/ASTERISK-27345Refsecurity.gentoo.org/glsa/201811-11Refwww.debian.org/security/2017/dsa-4076

How CyberStrike helps

Frequently asked questions

What is CVE-2017-16672?

CVE-2017-16672 is a medium-severity vulnerability. It was published on November 9, 2017 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

How severe is CVE-2017-16672?

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-16672?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-16672?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-16672 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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