{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-20177","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2022-10-27T18:47:50.363Z","datePublished":"2023-11-01T16:41:37.495Z","dateUpdated":"2024-08-02T09:05:35.348Z"},"containers":{"cna":{"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2024-01-25T16:57:50.305Z"},"descriptions":[{"lang":"en","value":"A vulnerability in the SSL file policy implementation of Cisco Firepower Threat Defense (FTD) Software that occurs when the SSL/TLS connection is configured with a URL Category and the Snort 3 detection engine could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability exists because a logic error occurs when a Snort 3 detection engine inspects an SSL/TLS connection that has either a URL Category configured on the SSL file policy or a URL Category configured on an access control policy with TLS server identity discovery enabled. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted SSL/TLS connection through an affected device. A successful exploit could allow the attacker to trigger an unexpected reload of the Snort 3 detection engine, resulting in either a bypass or denial of service (DoS) condition, depending on device configuration. The Snort 3 detection engine will restart automatically. No manual intervention is required."}],"affected":[{"vendor":"Cisco","product":"Cisco Firepower Threat Defense Software","versions":[{"version":"7.0.0","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.0.1.1","status":"affected"},{"version":"7.0.2","status":"affected"},{"version":"7.0.2.1","status":"affected"},{"version":"7.0.3","status":"affected"},{"version":"7.0.4","status":"affected"},{"version":"7.0.5","status":"affected"},{"version":"7.1.0","status":"affected"},{"version":"7.1.0.1","status":"affected"},{"version":"7.1.0.2","status":"affected"},{"version":"7.1.0.3","status":"affected"},{"version":"7.2.0","status":"affected"},{"version":"7.2.0.1","status":"affected"},{"version":"7.2.1","status":"affected"},{"version":"7.2.2","status":"affected"},{"version":"7.2.3","status":"affected"},{"version":"7.3.0","status":"affected"},{"version":"7.3.1","status":"affected"},{"version":"7.3.1.1","status":"affected"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Clearing of Heap Memory Before Release ('Heap Inspection')","type":"cwe","cweId":"CWE-244"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-ftd-snort3-urldos-OccFQTeX","name":"cisco-sa-sa-ftd-snort3-urldos-OccFQTeX"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","baseScore":4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}}],"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-sa-ftd-snort3-urldos-OccFQTeX","discovery":"EXTERNAL","defects":["CSCwe87591"]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T09:05:35.348Z"},"title":"CVE Program Container","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-ftd-snort3-urldos-OccFQTeX","name":"cisco-sa-sa-ftd-snort3-urldos-OccFQTeX","tags":["x_transferred"]}]}]}}