A vulnerability in the IP Service Level Agreements (IP SLA) responder and Two-Way Active Measurement Protocol (TWAMP) features of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause device packet memory to become exhausted or cause the IP SLA process to crash, resulting in a denial of service (DoS) condition. This vulnerability exists because socket creation failures are mishandled during the IP SLA and TWAMP processes. An attacker could exploit this vulnerability by sending specific IP SLA or TWAMP packets to an affected device. A successful exploit could allow the attacker to exhaust the packet memory, which will impact other processes, such as routing protocols, or crash the IP SLA process.
History

Thu, 07 Nov 2024 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-09-09T05:01:03.855610Z

Updated: 2024-11-07T22:00:49.116Z

Reserved: 2021-06-15T00:00:00

Link: CVE-2021-34720

cve-icon Vulnrichment

Updated: 2024-08-04T00:19:48.088Z

cve-icon NVD

Status : Modified

Published: 2021-09-09T05:15:11.463

Modified: 2023-11-07T03:36:11.803

Link: CVE-2021-34720

cve-icon Redhat

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