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Vigil@nce - Cisco IOS XR: denial of service via LPTS

July 2016 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can send numerous packets to fill the LPTS of Cisco
IOS XR, in order to trigger a denial of service.

Impacted products: Cisco ASR, IOS XR Cisco.

Severity: 2/4.

Creation date: 20/05/2016.

Revision date: 09/06/2016.

DESCRIPTION OF THE VULNERABILITY

The Cisco IOS XR product uses a LPTS (Local Packet Transport
Services) network stack.

However, when this LPTS table is full, new queries are rejected.

An attacker can therefore send numerous packets to fill the LPTS
of Cisco IOS XR, in order to trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Cisco-IOS-XR-denial-of-service-via-LPTS-19672


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