Vulnerability Details CVE-2022-20950
A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart.
This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 32.8%
CVSS Severity
CVSS v3 Score 5.8
References
Products affected by CVE-2022-20950
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cpe:2.3:a:cisco:firepower_threat_defense:7.2.0
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cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1