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A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error in TCP-based packet inspection, which could cause the TCP packet to have an invalid Layer 2 (L2)-formatted header. An attacker could exploit this vulnerability by sending a crafted TCP packet sequence to the targeted device. A successful exploit could allow the attacker to cause a DoS condition.
Metrics
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AND
OR
*cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions up to (excluding) 9.4.4.34
*cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.5 up to (excluding) 9.6.4.25
*cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (including) 9.7 up to (excluding) 9.8.4
*cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* versions from (includ
Added
CPE Configuration
OR
*cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.2.3.12
*cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 6.3.0.3
Added
CVSS V2
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Added
CVSS V3
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added
CWE
CWE-20
Changed
Reference Type
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftdtcp-dos No Types Assigned