CVE-2012-3863

MEDIUM

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.

References

http://downloads.asterisk.org/pub/security/AST-2012-010.html

http://secunia.com/advisories/50687

http://secunia.com/advisories/50756

http://www.debian.org/security/2012/dsa-2550

http://www.securityfocus.com/bid/54327

https://issues.asterisk.org/jira/browse/ASTERISK-19992

Details

Source: MITRE

Published: 2012-07-09

Updated: 2013-10-10

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 4

Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM