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.
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History
Thu, 21 Nov 2024 20:15:00 +0000
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-21T19:23:53.261Z
Reserved: 2018-12-06T00:00:00
Link: CVE-2019-1849
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Updated: 2024-08-04T18:28:42.809Z
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Status : Modified
Published: 2019-05-16T02:29:00.497
Modified: 2024-11-21T04:37:31.553
Link: CVE-2019-1849
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