CVE ID: CVE-2012-4620
Release Date: 2012 August 12 19:04 UTC (GMT)
Last Updated: 2012 August 12 19:04 UTC (GMT)
SummaryCisco IOS Software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted device.
The vulnerability is due to improper handling of IP tunneled ingress traffic by the Cisco IOS Software. An unauthenticated, remote attacker could exploit this vulnerability by sending Generic Routing Encapsulation IP (GRE/IP), IP in IP (IPIP), or IPv4 encapsulated IPv6 packets, which terminate at the device, to a device with a vulnerable tunnel configuration. Successful exploitation could allow the attacker to cause the affected device to stop responding to legitimate IP tunnel traffic on an affected interface, resulting in a DoS condition.
|Cisco IOS software||CSCts66808||7.8/6.4|
What Is a Cisco Security Notice?
The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco Security Notices to inform customers of low- to mid-level severity security issues involving Cisco products.
Customers who wish to upgrade to a software version that includes fixes for these issues should contact their normal support channels. Free software updates will not be provided for issues that are disclosed through a Cisco Security Notice.
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|Cisco Security Advisory||Cisco IPS Signature||Alerts|