NVD

Id
84634  
Name
CVE-2017-3793  
Description
A vulnerability in the TCP normalizer of Cisco Adaptive Security Appliance (ASA) Software (8.0 through 8.7 and 9.0 through 9.6) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause Cisco ASA and FTD to drop any further incoming traffic on all interfaces, resulting in a denial of service (DoS) condition. The vulnerability is due to improper limitation of the global out-of-order TCP queue for specific block sizes. An attacker could exploit this vulnerability by sending a large number of unique permitted TCP connections with out-of-order segments. An exploit could allow the attacker to exhaust available blocks in the global out-of-order TCP queue, causing the dropping of any further incoming traffic on all interfaces and resulting in a DoS condition. Cisco Bug IDs: CSCvb46321.  
Reject
 
CVSS Version
2  
CVSS Score
4.3  
Severity
Medium  
CVSS Base Score
4.3  
CVSS Impact Subscore
2.9  
CVSS Exploit Subscore
8.6  
CVSS Vector
(AV:N/AC:M/Au:N/C:N/I:N/A:P)  
Pub Date
2017-07-18  
Published
2017-04-20  
Modified Date
2017-07-10  
Seq
2017-3793  

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