A vulnerability in the implementation of Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an unauthenticated attacker who is in the same IS-IS area to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of IS–IS link-state protocol data units (PDUs). An attacker could exploit this vulnerability by sending specific link-state PDUs to an affected system to be processed. A successful exploit could allow the attacker to cause incorrect calculations used in the weighted remote shared risk link groups (SRLG) or in the IGP Flexible Algorithm. It could also cause tracebacks to the logs or potentially cause the receiving device to crash the IS–IS process, resulting in a DoS condition.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2019-08-07T21:10:21.824782Z
Updated: 2024-11-21T19:18:11.727Z
Reserved: 2018-12-06T00:00:00
Link: CVE-2019-1918
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-08-07T22:15:15.447
Modified: 2024-11-21T04:37:41.070
Link: CVE-2019-1918
Redhat
No data.