Buffer overflow in Cisco Adaptive Security Appliance Software
CVE-2022-20947
A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of HostScan data received from the Posture (HostScan) module. An attacker could exploit this vulnerability by sending crafted HostScan data to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU"] This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (56.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Adaptive_security_appliance_software — versions 9.6.1, 9.6.1.3, 9.6.1.5
- Cisco Adaptive Security Appliance (Asa) Software — versions 9.12.1.3, 9.17.1
- Cisco Firepower Threat Defense Software — versions 6.2.3, 6.2.3.1, 6.2.3.2
- Cisco Firepower_threat_defense — versions 6.1.0, 6.1.0.1, 6.1.0.2
- Cisco Secure_firewall_threat_defense — versions 6.1.0, 6.1.0.1, 6.1.0.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2022-20947?
- CVE-2022-20947 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.6/10. Published 2022-11-15.
- How severe is CVE-2022-20947?
- High severity. CVSS v3 base score is 8.6 out of 10.