Main Vulnerability Database Vulnerabilities #VU77080

Input validation error in Cisco Firewall Threat Defense (FTD) and Cisco Adaptive Security Appliance (ASA) - CVE-2023-20006

Published: June 7, 2023

Vulnerability identifier: #VU77080

CSH Severity: Medium

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-2023-20006

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to an implementation error within the cryptographic functions for SSL/TLS traffic processing when they are offloaded to the hardware. A remote attacker can send a specially crafted stream of SSL/TLS traffic to an affected device and perform a denial of service (DoS) attack.

Affected software

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

How to mitigate CVE-2023-20006

Install updates from vendor's website.

External References

Related Security Bulletins