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.
References
Link | Resource |
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa3 | Vendor Advisory |
http://www.securitytracker.com/id/1040725 | Third Party Advisory VDB Entry |
https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2018-04-19 13:29
Updated : 2019-10-09 16:31
NVD link : CVE-2018-0231
Mitre link : CVE-2018-0231
JSON object : View
CWE
CWE-787
Out-of-bounds Write
Products Affected
cisco
- firepower_threat_defense
- adaptive_security_appliance_software