Resource management error in Asterisk Open Source - CVE-2012-3863
Published: July 9, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32780
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2012-3863
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source
Asterisk Open Source
Detailed vulnerability description
The vulnerability allows a remote #AU# to perform service disruption.
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.
How to mitigate CVE-2012-3863
Install update from vendor's website.