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TITLE:
Cisco Unified Communications Manager Denial of Service
Vulnerabilities

SECUNIA ADVISORY ID:
SA38754

VERIFY ADVISORY:
http://secunia.com/advisories/38754/

DESCRIPTION:
Some vulnerabilities have been reported in Cisco Unified
Communications Manager, which can be exploited by malicious people to
cause a DoS (Denial of Service).

1) An error in the processing of SCCP packets can be exploited to
disrupt voice services via a specially crafted SCCP message.

2) An additional error in the processing of SCCP packets can be
exploited to disrupt voice services via a specially crafted SCCP
message.

3) Two errors in the processing of SIP messages can be exploited to
disrupt voice services via a specially crafted SIP message.

4) An error in the CTI Manager can be exploited to interrupt CTI
applications via a specially crafted packet sent to TCP port 2748.

Please see the vendor's advisory for details on affected versions.

SOLUTION:
Cisco Unified Communications Manager 4.x:
Update to version 4.3(2)SR2.

Cisco Unified Communications Manager 6.x:
Update to version 6.1(5).

Cisco Unified Communications Manager 7.x:
Update to version 7.1(3b)SU2.

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Sipera VIPER Lab.
2-4) Reported by the vendor.

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sa-20100303-cucm.shtml

OTHER REFERENCES:
http://www.cisco.com/warp/public/707/cisco-amb-20100303-cucm.shtml

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