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Vigil@nce - Cisco IOS, IOS XE, Cisco Unified Communications Manager: denial of service via SIP

May 2016 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

An attacker can send a malicious SIP packet to Cisco IOS, IOS XE,
or Cisco Unified Communications Manager, in order to trigger a
denial of service.

 Impacted products: Cisco Catalyst, IOS Cisco, IOS XE Cisco, Cisco
Router, Cisco CUCM.
 Severity: 2/4.
 Creation date: 24/03/2016.

DESCRIPTION OF THE VULNERABILITY

The Cisco IOS, IOS XE, or Cisco Unified Communications Manager
product has a service to manage received SIP packets.

However, when a malicious packet is received, a memory leak
occurs, which leads to a fatal error.

An attacker can therefore send a malicious SIP packet to Cisco
IOS, IOS XE, or Cisco Unified Communications Manager, in order to
trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Cisco-IOS-IOS-XE-Cisco-Unified-Communications-Manager-denial-of-service-via-SIP-19217


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