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Cisco Bug: CSCur70670 - CSDL: BGP process respawn on standby due to CDM connection timeout

Last Modified

Jul 20, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.3.0.BASE

Description (partial)

Symptoms:
A vulnerability in Concurrent Data Management Replication process of Cisco IOS XR for Cisco ASR9k could allow an unauthenticated, remote attacker to cause a 
reload of the BGP process.

The vulnerability is due to improper processing of malformed BGPv4 packets on an affected device. An attacker could exploit this vulnerability by sending malformed 
BGPv4 packets to be processed by an affected device. An exploit could allow the attacker to cause a reload of the BGP process.
 
 
Conditions:
 
Cisco IOS XR ASR9k configured to process BGPv4.
 
The following message can be seen on the affected device:
RP/0/RSP1/CPU0:Nov 13 09:35:10.054 : bgp[1052]: %ROUTING-BGP-3-LABEL_INIT : [7] : Initialization of BGP/LABEL failed (Failed to setup replication for vpnv4 
nexthop set CDM database:Connection timed out)  : pkg/bin/bgp : (PID=2535680) :  -Traceback= daf10f6 daf167c 828c050
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Bug Details Include

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