A vulnerability in the Border Gateway Patrol (BGP) Multiprotocol Label Switching (MPLS)-based Ethernet VPN (EVPN) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs when the affected software processes specific EVPN routing information. An attacker could exploit this vulnerability by injecting malicious traffic patterns into the targeted EVPN network. A successful exploit could result in a crash of the l2vpn_mgr process on Provider Edge (PE) device members of the same EVPN instance (EVI). On each of the affected devices, a crash could lead to system instability and the inability to process or forward traffic through the device, resulting in a DoS condition that would require manual intervention to restore normal operating conditions.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2019-05-16T01:20:41.653600Z

Updated: 2024-11-21T19:23:53.261Z

Reserved: 2018-12-06T00:00:00

Link: CVE-2019-1849

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-05-16T02:29:00.497

Modified: 2019-10-09T23:48:19.863

Link: CVE-2019-1849

cve-icon Redhat

No data.