var-200111-0002
Vulnerability from variot

Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table. There is a denial-of-service vulnerability in specific versions of Cisco IOS or CatOS. IOS is the Internetwork Operating System, distributed by Cisco Systems. A problem in the operating system has been discovered that could lead to a user on a system local to the router denying service all network users. The problem is in the handling of multiple ARP requests. It discontinues all other ARP entries afterwards. This makes it possible for a user on a network local to the router to deny service to users on all sides of the router. This vulnerability affects the following Cisco systems: Cisco routers in the AGS/MGS/CGS/AGS+, IGS, RSM, 800, ubr900, 1000, 1400, 1500, 1600, 1700, 2500, 2600, 3000, 3600, 3800, 4000, 4500, 4700, AS5200, AS5300, AS5800, 6400, 7000, 7200, ubr7200, 7500, and 12000 series. Most recent versions of the LS1010 ATM switch. The Catalyst 6000. The Catalyst 2900XL LAN switch. The Catalyst 1900, 2800, 2900, 3000, and 5000 series LAN switches are affected. The Cisco DistributedDirector. Vulnerabilities exist in several Cisco networking products

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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