A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2023-11-01T17:16:49.598Z
Updated: 2024-08-02T08:57:35.550Z
Reserved: 2022-10-27T18:47:50.334Z
Link: CVE-2023-20083
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-11-01T18:15:09.143
Modified: 2024-11-21T07:40:31.057
Link: CVE-2023-20083
Redhat
No data.