This advisory is available at the following link: There are no workarounds that address this vulnerability other than disabling SIP on the vulnerable device.
An exploit could allow the attacker to cause a memory leak and eventual reload of the affected device.Ĭisco has released software updates that address this vulnerability. An attacker could exploit this vulnerability by sending malformed SIP messages to be processed by an affected device. The vulnerability is due to improper processing of malformed SIP messages. A vulnerability in the Session Initiation Protocol (SIP) gateway implementation in Cisco IOS, IOS XE, and Cisco Unified Communications Manager Software could allow an unauthenticated, remote attacker to cause a memory leak and eventual reload of an affected device.
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