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CVE-2016-2316

5.9 · MEDIUM

chan_sip in Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3, when the timert1 sip.co…

Published Feb 22, 2016CWE-191EPSS 4.95%

Overview

CVE-2016-2316 is a medium-severity vulnerability. It was published on February 22, 2016 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

chan_sip in Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3, when the timert1 sip.conf configuration is set to a value greater than 1245, allows remote attackers to cause a denial of service (file descriptor consumption) via vectors related to large retransmit timeout values.

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.asterisk.org/pub/security/AST-2016-002.htmlReflists.fedoraproject.org/pipermail/package-announce/2016-February/177409.htmlReflists.fedoraproject.org/pipermail/package-announce/2016-February/177422.htmlRefwww.debian.org/security/2016/dsa-3700Refwww.securityfocus.com/bid/82651Refwww.securitytracker.com/id/1034930Refdownloads.asterisk.org/pub/security/AST-2016-002.htmlReflists.fedoraproject.org/pipermail/package-announce/2016-February/177409.htmlReflists.fedoraproject.org/pipermail/package-announce/2016-February/177422.htmlRefwww.debian.org/security/2016/dsa-3700

How CyberStrike helps

Frequently asked questions

What is CVE-2016-2316?

CVE-2016-2316 is a medium-severity vulnerability. It was published on February 22, 2016 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

How severe is CVE-2016-2316?

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-2016-2316?

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-2016-2316?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-2316 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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