CVE-2023-20042

A vulnerability in the AnyConnect SSL VPN feature of 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 is due to an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition.

• cisco secure firewall threat defense 7.0.0 • cisco secure firewall threat defense 7.0.0.1 • cisco secure firewall threat defense 7.0.1 • cisco secure firewall threat defense 7.0.1.1 • cisco secure firewall threat defense 7.0.2 • cisco secure firewall threat defense 7.0.2.1 • cisco secure firewall threat defense 7.0.3 • cisco secure firewall threat defense 7.0.4 • cisco secure firewall threat defense 7.0.5 • cisco secure firewall threat defense 7.1.0 • cisco secure firewall threat defense 7.1.0.1 • cisco secure firewall threat defense 7.1.0.2 • cisco secure firewall threat defense 7.1.0.3 • cisco secure firewall threat defense 7.2.0 • cisco secure firewall threat defense 7.2.0.1 • cisco secure firewall threat defense 7.2.1 • cisco secure firewall threat defense 7.2.2 • cisco secure firewall threat defense 7.2.3 • cisco secure firewall threat defense 7.3.0 • cisco secure firewall threat defense 7.3.1 • cisco secure firewall threat defense 7.3.1.1 • cisco adaptive security appliance software 9.16.1 • cisco adaptive security appliance software 9.16.1.28 • cisco adaptive security appliance software 9.16.2 • cisco adaptive security appliance software 9.16.2.3 • cisco adaptive security appliance software 9.16.2.7 • cisco adaptive security appliance software 9.16.2.11 • cisco adaptive security appliance software 9.16.2.13 • cisco adaptive security appliance software 9.16.2.14 • cisco adaptive security appliance software 9.16.3 • cisco adaptive security appliance software 9.16.3.3 • cisco adaptive security appliance software 9.16.3.14 • cisco adaptive security appliance software 9.16.3.15 • cisco adaptive security appliance software 9.16.3.19 • cisco adaptive security appliance software 9.16.3.23 • cisco adaptive security appliance software 9.16.4 • cisco adaptive security appliance software 9.16.4.9 • cisco adaptive security appliance software 9.17.1 • cisco adaptive security appliance software 9.17.1.7 • cisco adaptive security appliance software 9.17.1.9 • cisco adaptive security appliance software 9.17.1.10 • cisco adaptive security appliance software 9.17.1.11 • cisco adaptive security appliance software 9.17.1.13 • cisco adaptive security appliance software 9.17.1.15 • cisco adaptive security appliance software 9.17.1.20 • cisco adaptive security appliance software 9.18.1 • cisco adaptive security appliance software 9.18.1.3 • cisco adaptive security appliance software 9.18.2 • cisco adaptive security appliance software 9.18.2.5 • cisco adaptive security appliance software 9.18.2.7 • cisco adaptive security appliance software 9.19.1