CVE-2012-3863
4.0 · MEDIUMOverview
CVE-2012-3863 is a medium-severity vulnerability affecting digium asterisk_business_edition. It was published on July 9, 2012 and has a CVSS 2.0 base score of 4.0 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 4.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses.
Remediation
Check the references section for vendor advisories and patches from digium. Update asterisk_business_edition 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
| Vendor | Product | Versions | Status |
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References
Frequently Asked Questions
What is CVE-2012-3863?
CVE-2012-3863 is a medium-severity vulnerability affecting digium asterisk_business_edition. It was published on July 9, 2012 and has a CVSS 2.0 base score of 4.0 (MEDIUM).
How severe is CVE-2012-3863?
This vulnerability has a CVSS 2.0 base score of 4.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2012-3863?
Check the references section for vendor advisories and patches from digium. Update asterisk_business_edition 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-2012-3863?
CyberStrike's AI-powered security agents can automatically detect CVE-2012-3863 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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