8.6

CVE-2021-40117

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Denial of Service Vulnerability

A vulnerability in SSL/TLS message handler for 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 exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Adaptive Security Appliance Version < 9.8.4.40
Cisco ≫ Secure Firewall Threat Defense Version < 6.2.3.17
Cisco ≫ Secure Firewall Threat Defense Version >= 6.3.0 < 6.4.0.13
Cisco ≫ Secure Firewall Threat Defense Version >= 6.5.0 < 6.6.5
Cisco ≫ Secure Firewall Threat Defense Version >= 6.7.0 < 6.7.0.3
Cisco ≫ Secure Firewall Threat Defense Version >= 7.0.0 < 7.0.1
Cisco ≫ Adaptive Security Appliance Software Version >= 9.9.0 < 9.12.4.26
Cisco ≫ Adaptive Security Appliance Software Version >= 9.13.0 < 9.14.3.9
Cisco ≫ Adaptive Security Appliance Software Version >= 9.15.0 < 9.15.1.17
Cisco ≫ Adaptive Security Appliance Software Version >= 9.16.0 < 9.16.2.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.53% 0.728
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 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
NIST 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
Cisco PSIRT 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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dos-4ygzLKU9
Vendor Advisory