Avaya Argent Office vulnerable to denial of service via malformed DNS packets

Overview The Avaya Argent Office reboots in response to certain malformed DNS packets, resulting in a denial of service condition. Description The Avaya Argent Office reboots when a packet with an empty payload is sent to UDP port 53 DNS on its internal interface. By sending repeated packets to...

Cisco IOS and CatOS fail to properly validate ARP packets thereby overwriting device's MAC address in ARP table

Overview There is a denial-of-service vulnerability in specific versions of Cisco IOS or CatOS. Description A denial-of-service vulnerability exists in specific versions of Cisco IOS or CatOS. This vulnerability can cause the device to crash or become unavailable if specially crafted arp packets...