Vulnerability Monitor

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CVE-2017-3793

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.

Published

2017-04-20T22:59:00.230

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 4.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-399
  • Type: Primary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco adaptive_security_appliance_software 8.0.1.2 Yes
Operating System cisco adaptive_security_appliance_software 8.0.2 Yes
Operating System cisco adaptive_security_appliance_software 8.0.2.11 Yes
Operating System cisco adaptive_security_appliance_software 8.0.2.15 Yes
Operating System cisco adaptive_security_appliance_software 8.0.3 Yes
Operating System cisco adaptive_security_appliance_software 8.0.3.6 Yes
Operating System cisco adaptive_security_appliance_software 8.0.3.12 Yes
Operating System cisco adaptive_security_appliance_software 8.0.3.19 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.3 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.9 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.16 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.23 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.25 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.28 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.31 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.32 Yes
Operating System cisco adaptive_security_appliance_software 8.0.4.33 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5.20 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5.23 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5.25 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5.27 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5.28 Yes
Operating System cisco adaptive_security_appliance_software 8.0.5.31 Yes
Operating System cisco adaptive_security_appliance_software 8.1.0.104 Yes
Operating System cisco adaptive_security_appliance_software 8.1.1 Yes
Operating System cisco adaptive_security_appliance_software 8.1.1.6 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.13 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.15 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.16 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.19 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.23 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.24 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.49 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.50 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.55 Yes
Operating System cisco adaptive_security_appliance_software 8.1.2.56 Yes
Operating System cisco adaptive_security_appliance_software 8.2.0.45 Yes
Operating System cisco adaptive_security_appliance_software 8.2.1 Yes
Operating System cisco adaptive_security_appliance_software 8.2.1.11 Yes
Operating System cisco adaptive_security_appliance_software 8.2.2 Yes
Operating System cisco adaptive_security_appliance_software 8.2.2.9 Yes
Operating System cisco adaptive_security_appliance_software 8.2.2.10 Yes
Operating System cisco adaptive_security_appliance_software 8.2.2.12 Yes
Operating System cisco adaptive_security_appliance_software 8.2.2.16 Yes
Operating System cisco adaptive_security_appliance_software 8.2.2.17 Yes
Operating System cisco adaptive_security_appliance_software 8.2.3 Yes
Operating System cisco adaptive_security_appliance_software 8.2.4 Yes
Operating System cisco adaptive_security_appliance_software 8.2.4.1 Yes
Operating System cisco adaptive_security_appliance_software 8.2.4.4 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.13 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.22 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.26 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.33 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.40 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.41 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.46 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.48 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.50 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.52 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.55 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.57 Yes
Operating System cisco adaptive_security_appliance_software 8.2.5.59 Yes
Operating System cisco adaptive_security_appliance_software 8.3.1 Yes
Operating System cisco adaptive_security_appliance_software 8.3.1.1 Yes
Operating System cisco adaptive_security_appliance_software 8.3.1.4 Yes
Operating System cisco adaptive_security_appliance_software 8.3.1.6 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.4 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.13 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.23 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.25 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.31 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.33 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.34 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.37 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.39 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.40 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.41 Yes
Operating System cisco adaptive_security_appliance_software 8.3.2.44 Yes
Operating System cisco adaptive_security_appliance_software 8.4.0 Yes
Operating System cisco adaptive_security_appliance_software 8.4.1 Yes
Operating System cisco adaptive_security_appliance_software 8.4.1.3 Yes
Operating System cisco adaptive_security_appliance_software 8.4.1.11 Yes
Operating System cisco adaptive_security_appliance_software 8.4.2 Yes
Operating System cisco adaptive_security_appliance_software 8.4.2.1 Yes
Operating System cisco adaptive_security_appliance_software 8.4.2.8 Yes
Operating System cisco adaptive_security_appliance_software 8.4.3 Yes
Operating System cisco adaptive_security_appliance_software 8.4.3.8 Yes
Operating System cisco adaptive_security_appliance_software 8.4.3.9 Yes
Operating System cisco adaptive_security_appliance_software 8.4.4 Yes
Operating System cisco adaptive_security_appliance_software 8.4.4.1 Yes
Operating System cisco adaptive_security_appliance_software 8.4.4.3 Yes
Operating System cisco adaptive_security_appliance_software 8.4.4.5 Yes
Operating System cisco adaptive_security_appliance_software 8.4.4.9 Yes
Operating System cisco adaptive_security_appliance_software 8.4.5 Yes
Operating System cisco adaptive_security_appliance_software 8.4.5.6 Yes
Operating System cisco adaptive_security_appliance_software 8.4.6 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.3 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.15 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.22 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.23 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.26 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.28 Yes
Operating System cisco adaptive_security_appliance_software 8.4.7.29 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.1 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.6 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.7 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.14 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.17 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.18 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.19 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.21 Yes
Operating System cisco adaptive_security_appliance_software 8.5.1.24 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.1 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.2 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.5 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.10 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.12 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.13 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.14 Yes
Operating System cisco adaptive_security_appliance_software 8.6.1.17 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.1 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.3 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.4 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.7 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.8 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.11 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.13 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.16 Yes
Operating System cisco adaptive_security_appliance_software 8.7.1.17 Yes
Operating System cisco adaptive_security_appliance_software 9.0.1 Yes
Operating System cisco adaptive_security_appliance_software 9.0.2 Yes
Operating System cisco adaptive_security_appliance_software 9.0.2.10 Yes
Operating System cisco adaptive_security_appliance_software 9.0.3 Yes
Operating System cisco adaptive_security_appliance_software 9.0.3.6 Yes
Operating System cisco adaptive_security_appliance_software 9.0.3.8 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.1 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.5 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.7 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.17 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.20 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.24 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.26 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.29 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.33 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.35 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.37 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.40 Yes
Operating System cisco adaptive_security_appliance_software 9.0.4.42 Yes
Operating System cisco adaptive_security_appliance_software 9.1\(7\)4 Yes
Operating System cisco adaptive_security_appliance_software 9.1\(7\)6 Yes
Operating System cisco adaptive_security_appliance_software 9.1\(7\)7 Yes
Operating System cisco adaptive_security_appliance_software 9.1\(7\)9 Yes
Operating System cisco adaptive_security_appliance_software 9.1\(7\)11 Yes
Operating System cisco adaptive_security_appliance_software 9.1\(7\)12 Yes
Operating System cisco adaptive_security_appliance_software 9.1.1 Yes
Operating System cisco adaptive_security_appliance_software 9.1.1.4 Yes
Operating System cisco adaptive_security_appliance_software 9.1.2 Yes
Operating System cisco adaptive_security_appliance_software 9.1.2.8 Yes
Operating System cisco adaptive_security_appliance_software 9.1.3 Yes
Operating System cisco adaptive_security_appliance_software 9.1.3.2 Yes
Operating System cisco adaptive_security_appliance_software 9.1.4 Yes
Operating System cisco adaptive_security_appliance_software 9.1.4.5 Yes
Operating System cisco adaptive_security_appliance_software 9.1.5 Yes
Operating System cisco adaptive_security_appliance_software 9.1.5.10 Yes
Operating System cisco adaptive_security_appliance_software 9.1.5.12 Yes
Operating System cisco adaptive_security_appliance_software 9.1.5.15 Yes
Operating System cisco adaptive_security_appliance_software 9.1.5.21 Yes
Operating System cisco adaptive_security_appliance_software 9.1.6 Yes
Operating System cisco adaptive_security_appliance_software 9.1.6.1 Yes
Operating System cisco adaptive_security_appliance_software 9.1.6.4 Yes
Operating System cisco adaptive_security_appliance_software 9.1.6.6 Yes
Operating System cisco adaptive_security_appliance_software 9.1.6.8 Yes
Operating System cisco adaptive_security_appliance_software 9.1.6.10 Yes
Operating System cisco adaptive_security_appliance_software 9.2\(0.0\) Yes
Operating System cisco adaptive_security_appliance_software 9.2\(0.104\) Yes
Operating System cisco adaptive_security_appliance_software 9.2\(3.1\) Yes
Operating System cisco adaptive_security_appliance_software 9.2.1 Yes
Operating System cisco adaptive_security_appliance_software 9.2.2 Yes
Operating System cisco adaptive_security_appliance_software 9.2.2.4 Yes
Operating System cisco adaptive_security_appliance_software 9.2.2.7 Yes
Operating System cisco adaptive_security_appliance_software 9.2.2.8 Yes
Operating System cisco adaptive_security_appliance_software 9.2.3 Yes
Operating System cisco adaptive_security_appliance_software 9.2.3.3 Yes
Operating System cisco adaptive_security_appliance_software 9.2.3.4 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.2 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.4 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.8 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.10 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.13 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.14 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.16 Yes
Operating System cisco adaptive_security_appliance_software 9.2.4.17 Yes
Operating System cisco adaptive_security_appliance_software 9.3\(1.50\) Yes
Operating System cisco adaptive_security_appliance_software 9.3\(1.105\) Yes
Operating System cisco adaptive_security_appliance_software 9.3\(2.100\) Yes
Operating System cisco adaptive_security_appliance_software 9.3\(2.243\) Yes
Operating System cisco adaptive_security_appliance_software 9.3.1 Yes
Operating System cisco adaptive_security_appliance_software 9.3.1.1 Yes
Operating System cisco adaptive_security_appliance_software 9.3.2 Yes
Operating System cisco adaptive_security_appliance_software 9.3.2.2 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.1 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.2 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.5 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.6 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.9 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.10 Yes
Operating System cisco adaptive_security_appliance_software 9.3.3.11 Yes
Operating System cisco adaptive_security_appliance_software 9.3.5 Yes
Operating System cisco adaptive_security_appliance_software 9.4.0.115 Yes
Operating System cisco adaptive_security_appliance_software 9.4.1 Yes
Operating System cisco adaptive_security_appliance_software 9.4.1.1 Yes
Operating System cisco adaptive_security_appliance_software 9.4.1.2 Yes
Operating System cisco adaptive_security_appliance_software 9.4.1.3 Yes
Operating System cisco adaptive_security_appliance_software 9.4.1.5 Yes
Operating System cisco adaptive_security_appliance_software 9.4.2 Yes
Operating System cisco adaptive_security_appliance_software 9.4.2.3 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3.3 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3.4 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3.6 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3.8 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3.11 Yes
Operating System cisco adaptive_security_appliance_software 9.4.3.12 Yes
Operating System cisco adaptive_security_appliance_software 9.4.4 Yes
Operating System cisco adaptive_security_appliance_software 9.5.1 Yes
Operating System cisco adaptive_security_appliance_software 9.5.2 Yes
Operating System cisco adaptive_security_appliance_software 9.5.2.6 Yes
Operating System cisco adaptive_security_appliance_software 9.5.2.10 Yes
Operating System cisco adaptive_security_appliance_software 9.5.2.14 Yes
Operating System cisco adaptive_security_appliance_software 9.5.3 Yes
Operating System cisco adaptive_security_appliance_software 9.5.3.2 Yes
Operating System cisco adaptive_security_appliance_software 9.5.3.3 Yes
Operating System cisco adaptive_security_appliance_software 9.6.0 Yes
Operating System cisco adaptive_security_appliance_software 9.6.1 Yes
Operating System cisco adaptive_security_appliance_software 9.6.1.3 Yes
Operating System cisco adaptive_security_appliance_software 9.6.1.5 Yes
Operating System cisco adaptive_security_appliance_software 9.6.1.10 Yes
Operating System cisco adaptive_security_appliance_software 9.6.2 Yes
Operating System cisco adaptive_security_appliance_software 9.6.2.1 Yes
Operating System cisco adaptive_security_appliance_software 9.6.2.2 Yes
Operating System cisco adaptive_security_appliance_software 9.6.2.3 Yes
References