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Cisco Bug: CSCuj82176 - Cisco IOS XR Software OSPFv3 Denial of Service Vulnerability

Last Modified

Aug 06, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.1.1.BASE

Description (partial)

Symptom:
A vulnerability in the Open Shortest Path First version 3 (OSPFv3) implementation in Cisco IOS XR Software could allow an unauthenticated, remote 
attacker to cause a crash of the OSPFv3 process on an affected device.

The vulnerability is due to improper parsing of malformed type 1 link-state advertisement (LSA) packets. An attacker could exploit this vulnerability by 
sending a malformed type 1 LSA packet to a vulnerable device. An exploit could allow the attacker to cause a crash of the OSPFv3 process on an 
affected device, which may lead to a denial of service (DoS) condition.

Conditions:
OSPFv3 configured on a device
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Bug Details Include

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