Description
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.
Published: 2023-03-09
Score: 8.6 High
EPSS: 1.1% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-24228 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.
History

Mon, 28 Oct 2024 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco Asr 9000v-v2 Asr 9001 Asr 9006 Asr 9010 Asr 9901 Asr 9902 Asr 9903 Asr 9904 Asr 9906 Asr 9910 Asr 9912 Asr 9922 Ios Xr
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-10-28T16:33:14.713Z

Reserved: 2022-10-27T00:00:00.000Z

Link: CVE-2023-20049

cve-icon Vulnrichment

Updated: 2024-08-02T08:57:35.607Z

cve-icon NVD

Status : Modified

Published: 2023-03-09T22:15:52.200

Modified: 2024-11-21T07:40:26.213

Link: CVE-2023-20049

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses