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CVE-2014-4045

4.3 · MEDIUM

The Publish/Subscribe Framework in the PJSIP channel driver in Asterisk Open Source 12.x before 12.3.1, when sub_min_expiry is set to zero, allows remote attackers to cause a denial of service (ass…

Published Jun 17, 2014digiumCWE-189EPSS 2.77%

Overview

CVE-2014-4045 is a medium-severity vulnerability affecting digium asterisk. It was published on June 17, 2014 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The Publish/Subscribe Framework in the PJSIP channel driver in Asterisk Open Source 12.x before 12.3.1, when sub_min_expiry is set to zero, allows remote attackers to cause a denial of service (assertion failure and crash) via an unsubscribe request when not subscribed to the device.

Remediation

Check the references section for vendor advisories and patches from digium. Update asterisk to the latest patched version. 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.

Affected products

VendorProductVersionsStatus

References

Refdownloads.asterisk.org/pub/security/AST-2014-005.htmlRefpacketstormsecurity.com/files/127087/Asterisk-Project-Security-Advisory-AST-2014-005.htmlRefwww.securityfocus.com/archive/1/532414/100/0/threadedRefdownloads.asterisk.org/pub/security/AST-2014-005.htmlRefpacketstormsecurity.com/files/127087/Asterisk-Project-Security-Advisory-AST-2014-005.htmlRefwww.securityfocus.com/archive/1/532414/100/0/threaded

How CyberStrike helps

Frequently asked questions

What is CVE-2014-4045?

CVE-2014-4045 is a medium-severity vulnerability affecting digium asterisk. It was published on June 17, 2014 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2014-4045?

This vulnerability has a CVSS 2.0 base score of 4.3, 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-2014-4045?

Check the references section for vendor advisories and patches from digium. Update asterisk to the latest patched version. 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-2014-4045?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-4045 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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