Description

reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.2 does not initialize certain strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed Contact header.

References

http://downloads.digium.com/pub/security/AST-2011-007.html

http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062658.html

http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062013.html

http://osvdb.org/72752

http://secunia.com/advisories/44828

http://securitytracker.com/id?1025598

http://www.securityfocus.com/archive/1/518236/100/0/threaded

http://www.securityfocus.com/bid/48096

https://exchange.xforce.ibmcloud.com/vulnerabilities/67812

Details

Risk Information

CVSS v2