A vulnerability in the PPP over Ethernet (PPPoE) termination feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to crash the ppp_ma process, resulting in a denial of service (DoS) condition.
This vulnerability is due to the improper handling of malformed PPPoE packets that are received on a router that is running Broadband Network Gateway (BNG) functionality with PPPoE termination on a Lightspeed-based or Lightspeed-Plus-based line card. An attacker could exploit this vulnerability by sending a crafted PPPoE packet to an affected line card interface that does not terminate PPPoE. A successful exploit could allow the attacker to crash the ppp_ma process, resulting in a DoS condition for PPPoE traffic across the router.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2024-03-13T16:40:38.336Z
Updated: 2024-08-01T21:59:42.888Z
Reserved: 2023-11-08T15:08:07.641Z
Link: CVE-2024-20327
Vulnrichment
Updated: 2024-08-01T21:59:42.888Z
NVD
Status : Awaiting Analysis
Published: 2024-03-13T17:15:48.593
Modified: 2024-03-13T18:15:58.530
Link: CVE-2024-20327
Redhat
No data.