Multiple vulnerabilities have been identified in Cisco Unified Communications Manager, which could be exploited by attackers to cause a denial of service.
The first issue is caused by a memory consumption error in the Certificate Trust List (CTL) Provider service (enabled by default) when handling a series of malformed TCP packets (default port is 2444/TCP), which may result in the interruption of voice services [...]
Solution
Upgrade to Cisco Unified CallManager version 4.1(3)SR7 :
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-41?psrtdcat20e2
Upgrade to Cisco Unified Communications Manager version 4.2(3)SR4, 4.3(2), 5.1(3), or 6.1(1) :
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-42?psrtdcat20e2
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-43?psrtdcat20e2
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-51?psrtdcat20e2
http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-61?psrtdcat20e2
Credits
Vulnerabilities reported by the vendor.
ChangeLog
2008-05-14 : Initial release
Vulnerability Management
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