description: A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of HTTPS requests. An attacker could exploit this vulnerability by sending crafted HTTPS requests to an affected system. A successful exploit could allow the attacker to cause resource exhaustion, resulting in a DoS condition.
problem types: Missing Release of Resource after Effective Lifetime
affected:
{
vendor: Cisco
product: Cisco Adaptive Security Appliance (ASA) Software
versions:
version: 9.8.1, status: affected
version: 9.8.1.5, status: affected
version: 9.8.1.7, status: affected
version: 9.8.2, status: affected
version: 9.8.2.8, status: affected
version: 9.8.2.14, status: affected
version: 9.8.2.15, status: affected
version: 9.8.2.17, status: affected
version: 9.8.2.20, status: affected
version: 9.8.2.24, status: affected
version: 9.8.2.26, status: affected
version: 9.8.2.28, status: affected
version: 9.8.2.33, status: affected
version: 9.8.2.35, status: affected
version: 9.8.2.38, status: affected
version: 9.8.3.8, status: affected
version: 9.8.3.11, status: affected
version: 9.8.3.14, status: affected
version: 9.8.3.16, status: affected
version: 9.8.3.18, status: affected
version: 9.8.3.21, status: affected
version: 9.8.3, status: affected
version: 9.8.3.26, status: affected
version: 9.8.3.29, status: affected
version: 9.8.4, status: affected
version: 9.8.4.3, status: affected
version: 9.8.4.7, status: affected
version: 9.8.4.8, status: affected
version: 9.8.4.10, status: affected
version: 9.8.4.12, status: affected
version: 9.8.4.15, status: affected
version: 9.8.4.17, status: affected
version: 9.8.4.25, status: affected
version: 9.8.4.20, status: affected
version: 9.8.4.22, status: affected
version: 9.8.4.26, status: affected
version: 9.8.4.29, status: affected
version: 9.8.4.32, status: affected
version: 9.8.4.33, status: affected
version: 9.8.4.34, status: affected
version: 9.8.4.35, status: affected
version: 9.8.4.39, status: affected
version: 9.8.4.40, status: affected
version: 9.8.4.41, status: affected
version: 9.8.4.43, status: affected
version: 9.8.4.44, status: affected
version: 9.8.4.45, status: affected
version: 9.12.1, status: affected
version: 9.12.1.2, status: affected
version: 9.12.1.3, status: affected
version: 9.12.2, status: affected
version: 9.12.2.4, status: affected
version: 9.12.2.5, status: affected
version: 9.12.2.9, status: affected
version: 9.12.3, status: affected
version: 9.12.3.2, status: affected
version: 9.12.3.7, status: affected
version: 9.12.4, status: affected
version: 9.12.3.12, status: affected
version: 9.12.3.9, status: affected
version: 9.12.2.1, status: affected
version: 9.12.4.2, status: affected
version: 9.12.4.4, status: affected
version: 9.12.4.7, status: affected
version: 9.12.4.10, status: affected
version: 9.12.4.13, status: affected
version: 9.12.4.8, status: affected
version: 9.12.4.18, status: affected
version: 9.12.4.24, status: affected
version: 9.12.4.26, status: affected
version: 9.12.4.29, status: affected
version: 9.12.4.30, status: affected
version: 9.12.4.35, status: affected
version: 9.12.4.37, status: affected
version: 9.12.4.38, status: affected
version: 9.12.4.39, status: affected
version: 9.12.4.40, status: affected
version: 9.12.4.41, status: affected
version: 9.14.1, status: affected
version: 9.14.1.10, status: affected
version: 9.14.1.6, status: affected
version: 9.14.1.15, status: affected
version: 9.14.1.19, status: affected
version: 9.14.1.30, status: affected
version: 9.14.2, status: affected
version: 9.14.2.4, status: affected
version: 9.14.2.8, status: affected
version: 9.14.2.13, status: affected
version: 9.14.2.15, status: affected
version: 9.14.3, status: affected
version: 9.14.3.1, status: affected
version: 9.14.3.9, status: affected
version: 9.14.3.11, status: affected
version: 9.14.3.13, status: affected
version: 9.14.3.18, status: affected
version: 9.14.3.15, status: affected
version: 9.14.4, status: affected
version: 9.14.4.6, status: affected
version: 9.14.4.7, status: affected
version: 9.15.1, status: affected
version: 9.15.1.7, status: affected
version: 9.15.1.10, status: affected
version: 9.15.1.15, status: affected
version: 9.15.1.16, status: affected
version: 9.15.1.17, status: affected
version: 9.15.1.1, status: affected
version: 9.15.1.21, status: affected
version: 9.16.1, status: affected
version: 9.16.1.28, status: affected
version: 9.16.2, status: affected
version: 9.16.2.3, status: affected
version: 9.16.2.7, status: affected
version: 9.16.2.11, status: affected
version: 9.16.2.13, status: affected
version: 9.16.2.14, status: affected
version: 9.16.3, status: affected
version: 9.16.3.3, status: affected
version: 9.16.3.14, status: affected
version: 9.17.1, status: affected
version: 9.17.1.7, status: affected
version: 9.17.1.9, status: affected
version: 9.18.1, status: affected
}
{
vendor: Cisco
product: Cisco Firepower Threat Defense Software
versions:
version: 6.2.3, status: affected
version: 6.2.3.1, status: affected
version: 6.2.3.2, status: affected
version: 6.2.3.3, status: affected
version: 6.2.3.4, status: affected
version: 6.2.3.5, status: affected
version: 6.2.3.6, status: affected
version: 6.2.3.7, status: affected
version: 6.2.3.8, status: affected
version: 6.2.3.10, status: affected
version: 6.2.3.11, status: affected
version: 6.2.3.9, status: affected
version: 6.2.3.12, status: affected
version: 6.2.3.13, status: affected
version: 6.2.3.14, status: affected
version: 6.2.3.15, status: affected
version: 6.2.3.16, status: affected
version: 6.2.3.17, status: affected
version: 6.2.3.18, status: affected
version: 6.6.0, status: affected
version: 6.6.0.1, status: affected
version: 6.6.1, status: affected
version: 6.6.3, status: affected
version: 6.6.4, status: affected
version: 6.6.5, status: affected
version: 6.6.5.1, status: affected
version: 6.6.5.2, status: affected
version: 6.4.0, status: affected
version: 6.4.0.1, status: affected
version: 6.4.0.3, status: affected
version: 6.4.0.2, status: affected
version: 6.4.0.4, status: affected
version: 6.4.0.5, status: affected
version: 6.4.0.6, status: affected
version: 6.4.0.7, status: affected
version: 6.4.0.8, status: affected
version: 6.4.0.9, status: affected
version: 6.4.0.10, status: affected
version: 6.4.0.11, status: affected
version: 6.4.0.12, status: affected
version: 6.4.0.13, status: affected
version: 6.4.0.14, status: affected
version: 6.4.0.15, status: affected
version: 6.7.0, status: affected
version: 6.7.0.1, status: affected
version: 6.7.0.2, status: affected
version: 6.7.0.3, status: affected
version: 7.0.0, status: affected
version: 7.0.0.1, status: affected
version: 7.0.1, status: affected
version: 7.0.1.1, status: affected
version: 7.0.2, status: affected
version: 7.0.2.1, status: affected
version: 7.0.3, status: affected
version: 7.1.0, status: affected
version: 7.1.0.1, status: affected
version: 7.1.0.2, status: affected
version: 7.2.0, status: affected
version: 7.2.0.1, status: affected
}
metrics:
format: cvssV3_1
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
baseScore: 8.6
baseSeverity: HIGH
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
]
exploits: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.