A vulnerability in the Transport Layer Security (TLS) library of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of the affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious TLS message to an interface enabled for Secure Layer Socket (SSL) services on an affected device. Messages using SSL Version 3 (SSLv3) or SSL Version 2 (SSLv2) cannot be be used to exploit this vulnerability. An exploit could allow the attacker to cause a buffer underflow, triggering a crash on an affected device. This vulnerability affects Cisco ASA Software and Cisco FTD Software that is running on the following Cisco products: Adaptive Security Virtual Appliance (ASAv), Firepower Threat Defense Virtual (FTDv), Firepower 2100 Series Security Appliance. Cisco Bug IDs: CSCve18902, CSCve34335, CSCve38446.

According to its self-reported version the Cisco Firepower Threat Defense (FTD) software running on the remote device is affected by multiple vulnerabilities. Please see the included Cisco BIDs and Cisco Security Advisories for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to its self-reported version the Cisco Adaptive Security Appliance (ASA) software running on the remote device is affected by multiple vulnerabilities. Please see the included Cisco BIDs and Cisco Security Advisories for more information.

ID	Name	Product	Family	Severity
133044	Cisco FTD Multiple Vulnerabilities (cisco-sa-20180418-asa1 / cisco-sa-20180418-asa2 / cisco-sa-20180418-asa3 / cisco-sa-20180418-asaanyconnect / cisco-sa-20180418-asa_inspect)	Nessus	CISCO	high
109404	Cisco ASA Multiple Vulnerabilities (cisco-sa-20180418-asa1 / cisco-sa-20180418-asa2 / cisco-sa-20180418-asa3 / cisco-sa-20180418-asaanyconnect / cisco-sa-20180418-asa_inspect)	Nessus	CISCO	high

Detections

Analytics

CVE-2018-0231

high

Tenable Plugins

high

high