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computer vulnerability note CVE-2016-6421

Cisco IOS XR: denial of service via OSPF LSA

Synthesis of the vulnerability

An attacker can send a malicious OSPF LSA packet to Cisco IOS XR, in order to trigger a denial of service.
Impacted products: Cisco Catalyst, IOS XR Cisco, Cisco Router.
Severity: 2/4.
Creation date: 29/09/2016.
Identifiers: cisco-sa-20160928-ospf, CSCvb05643, CVE-2016-6421, VIGILANCE-VUL-20729.

Description of the vulnerability

The Cisco IOS XR product has a service to manage received OSPF LSA packets.

However, when a malicious packet is received, a fatal error occurs.

An attacker can therefore send a malicious OSPF LSA packet to Cisco IOS XR, in order to trigger a denial of service.
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