Buffer overflow in Cisco Firewall Threat Defense (FTD) and Cisco Adaptive Security Appliance (ASA) - CVE-2022-20947

Vulnerability identifier: #VU69202

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-20947

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in dynamic access policies (DAP) functionality. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)

Install updates from vendor's website.

Cisco Firewall Threat Defense (FTD) - addressed in versions 006.004(000.015), 006.006(007), 007.000(002), 007.002(000), 009.008(004.044), 9.8.4.45, 9.8.4.46, 9.12.4.48, 9.12.4.50, 9.12.4.52, 9.12.4.54, 9.14.4, 9.14.4.13, 9.14.4.14, 9.14.4.15, 9.14.4.17, 9.16.3, 9.16.3.19, 9.16.3.23, 9.16.4, 9.17.1.13, 9.17.1.15, 9.17.1.20, 009.018(001), 9.18.1, 9.18.2, 9.18.2.5
Cisco Adaptive Security Appliance (ASA) - addressed in versions 006.004(000.015), 006.006(007), 007.000(002), 007.002(000), 009.008(004.044), 9.8.4.45, 9.8.4.46, 9.12.4.48, 9.12.4.50, 9.12.4.52, 9.12.4.54, 9.14.4, 9.14.4.13, 9.14.4.14, 9.14.4.15, 9.14.4.17, 9.16.3, 9.16.3.19, 9.16.3.23, 9.16.4, 9.17.1.13, 9.17.1.15, 9.17.1.20, 009.018(001), 9.18.1, 9.18.2, 9.18.2.5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU

• Denial of service in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software