FKIE_CVE-2023-20049

Vulnerability from fkie_nvd - Published: 2023-03-09 22:15 - Updated: 2024-11-21 07:40
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.
References
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bfd-XmRescbTVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bfd-XmRescbTVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xr *
cisco ios_xr *
cisco ios_xr 7.7
cisco asr_9000v-v2 -
cisco asr_9001 -
cisco asr_9006 -
cisco asr_9010 -
cisco asr_9901 -
cisco asr_9902 -
cisco asr_9903 -
cisco asr_9904 -
cisco asr_9906 -
cisco asr_9910 -
cisco asr_9912 -
cisco asr_9922 -
To clipboard 

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