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CVE-2018-0228

CVE information

Published

4 years ago

Last Modified

1 year ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

Description

A vulnerability in the ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the CPU to increase upwards of 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect handling of an internal software lock that could prevent other system processes from getting CPU cycles, causing a high CPU condition. An attacker could exploit this vulnerability by sending a steady stream of malicious IP packets that can cause connections to be created on the targeted device. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition during which traffic through the device could be delayed. This vulnerability applies to either IPv4 or IPv6 ingress traffic. This vulnerability affects Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) Software that is running on the following Cisco products: 3000 Series Industrial Security Appliances (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Adaptive Security Virtual Appliances (ASAv), Firepower 2100 Series Security Appliances, Firepower 4110 Security Appliances, Firepower 9300 ASA Security Modules. Cisco Bug IDs: CSCvf63718..

CVSSv2.0 Score

Severity
High
Base Score
7.8/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
6.9/10
Confidentiality Impact
None
Availability Impact
Complete
Integrity Impact
None

CVSSv3.1 Score

Severity
High
Base Score
8.6/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
4/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Changed
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.1 9.1.7.20
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.2 9.2.4.27
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.3 9.4.4.13
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.5 9.6.3.17
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.7 9.7.1.16
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.8 9.8.2.14
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*
  Yes
9.9 9.9.1
cpe:2.3:a:cisco:adaptive_security_appliance_software:98.1\(1
  Yes
- -
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
  Yes
6.0 6.1.0.6
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
  Yes
6.2.0 6.2.0.5
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
  Yes
6.2.1 6.2.2.2

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