Race condition in the VRF-aware NAT feature in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 allows remote attackers to cause a denial of service (memory consumption) via IPv4 packets, aka Bug IDs CSCtg47129 and CSCtz96745.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130327-nat | vendor advisory |
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1142 | vendor advisory |