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Cisco Security Advisory 20140611-ipv6
Posted Jun 12, 2014
Authored by Cisco Systems | Site cisco.com

Cisco Security Advisory - A vulnerability in the parsing of malformed Internet Protocol version 6 (IPv6) packets in Cisco IOS XR Software for ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a lockup and eventual reload of a Network Processor (NP) chip and a line card processing traffic. Only Trident-based line cards on Cisco ASR 9000 Series Aggregation Services Routers are affected by this vulnerability. The vulnerability is due to insufficient logic in parsing malformed IPv6 packets. An attacker could exploit this vulnerability by sending a stream of malformed IPv6 packets to the affected device. An exploit could allow the attacker to cause a lockup and eventual reload of an NP chip and a line card, leading to a denial of service (DoS) condition. Cisco has released free software updates that address this vulnerability. There are no workarounds that address this vulnerability.

tags | advisory, remote, denial of service, protocol
systems | cisco, osx
SHA-256 | f3af44143cbfe46be74fb8564b68596662a6f6031261bb1fc7a1aa61e6913896

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