A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device that are sent to the Snort detection engine will be dropped. The Snort detection engine will restart automatically. No manual intervention is required.
References
Link | Resource |
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https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-uAnUntcV | Vendor Advisory |
History
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MITRE Information
Status: PUBLISHED
Assigner: cisco
Published: 2023-11-01T17:08:19.315Z
Updated: 2024-01-25T16:57:40.830Z
Reserved: 2022-10-27T18:47:50.328Z
Link: CVE-2023-20070
JSON object: View
NVD Information
Status : Modified
Published: 2023-11-01T18:15:09.027
Modified: 2024-01-25T17:15:28.433
Link: CVE-2023-20070
JSON object: View
Redhat Information
No data.