A vulnerability in the processing of SSH connections for multi-instance deployments of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. This vulnerability is due to a lack of proper error handling when an SSH session fails to be established. An attacker could exploit this vulnerability by sending a high rate of crafted SSH connections to the instance. A successful exploit could allow the attacker to cause resource exhaustion, which causes a DoS condition on the affected device. The device must be manually reloaded to recover.
Metrics
Affected Vendors & Products
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History
Thu, 07 Nov 2024 22:15:00 +0000
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2021-10-27T18:55:52.320484Z
Updated: 2024-11-07T21:46:12.549Z
Reserved: 2021-06-15T00:00:00
Link: CVE-2021-34781
Vulnrichment
Updated: 2024-08-04T00:19:48.142Z
NVD
Status : Modified
Published: 2021-10-27T19:15:08.233
Modified: 2024-11-21T06:11:11.290
Link: CVE-2021-34781
Redhat
No data.