Cisco IOS contains a flaw that may allow a remote denial of service. The issue is triggered when STCAPP fails to properly handle multiple calls to a shared line, allowing a remote attacker to cause a port hang denial of service by ending two calls controlled by CallManager Express simultaneously.
Classification
Location:
Remote / Network Access
Attack Type:
Denial of Service
Impact:
Loss of Availability
Solution:
Upgrade
Exploit:
Exploit Unknown
Disclosure:
Vendor Verified
Solution
Upgrade to version 15.0(1)XA1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
