8.6
CVE-2020-3529
- EPSS 1.31%
- Published 21.10.2020 19:15:16
- Last modified 21.11.2024 05:31:15
- Source psirt@cisco.com
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A vulnerability in the SSL VPN negotiation process for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to inefficient direct memory access (DMA) memory management during the negotiation phase of an SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted Datagram TLS (DTLS) traffic to an affected device. A successful exploit could allow the attacker to exhaust DMA memory on the device and cause a DoS condition.
Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Adaptive Security Appliance Version < 9.6.4.45
Cisco ≫ Firepower Threat Defense Version < 6.3.0.6
Cisco ≫ Firepower Threat Defense Version >= 6.4.0 < 6.4.0.10
Cisco ≫ Firepower Threat Defense Version >= 6.5.0 < 6.5.0.5
Cisco ≫ Firepower Threat Defense Version >= 6.6.0 < 6.6.1
Cisco ≫ Adaptive Security Appliance Software Version >= 9.8.0 < 9.8.4.29
Cisco ≫ Adaptive Security Appliance Software Version >= 9.9.0 < 9.9.2.80
Cisco ≫ Adaptive Security Appliance Software Version >= 9.10.0 < 9.10.1.44
Cisco ≫ Adaptive Security Appliance Software Version >= 9.12.0 < 9.12.4.4
Cisco ≫ Adaptive Security Appliance Software Version >= 9.13.0 < 9.13.1.13
Cisco ≫ Adaptive Security Appliance Software Version >= 9.14.0 < 9.14.1.30
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.31% | 0.779 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
| nvd@nist.gov | 5 | 10 | 2.9 |
AV:N/AC:L/Au:N/C:N/I:N/A:P
|
| psirt@cisco.com | 8.6 | 3.9 | 4 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
|
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.