Vulnerability Details CVE-2018-0231
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 67.9%
CVSS Severity
CVSS v3 Score 8.6
CVSS v2 Score 7.8
References
- http://www.securitytracker.com/id/1040725
- https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa3
- http://www.securitytracker.com/id/1040725
- https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa3
Products affected by CVE-2018-0231
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cpe:2.3:a:cisco:firepower_threat_defense:6.0
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.0
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.0.1
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.1
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.1
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.2
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.3
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cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.4
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cpe:2.3:a:cisco:firepower_threat_defense:6.1.0
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cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.1
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cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.2
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cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.3
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cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.4
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cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.5
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cpe:2.3:a:cisco:firepower_threat_defense:6.2.1
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cpe:2.3:a:cisco:firepower_threat_defense:6.2.2
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cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8(1)
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cpe:2.3:o:cisco:adaptive_security_appliance_software:98.1(1.154)