Vulnerability Monitor

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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.

Published

2023-11-01T18:15:08.843

Last Modified

2024-11-21T07:40:25.200

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-404
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense 7.0.0 Yes
Application cisco firepower_threat_defense 7.0.0.1 Yes
Application cisco firepower_threat_defense 7.0.1 Yes
Application cisco firepower_threat_defense 7.0.1.1 Yes
Application cisco firepower_threat_defense 7.0.2 Yes
Application cisco firepower_threat_defense 7.0.2.1 Yes
Application cisco firepower_threat_defense 7.0.3 Yes
Application cisco firepower_threat_defense 7.0.4 Yes
Application cisco firepower_threat_defense 7.0.5 Yes
Application cisco firepower_threat_defense 7.1.0 Yes
Application cisco firepower_threat_defense 7.1.0.1 Yes
Application cisco firepower_threat_defense 7.1.0.2 Yes
Application cisco firepower_threat_defense 7.1.0.3 Yes
Application cisco firepower_threat_defense 7.2.0 Yes
Application cisco firepower_threat_defense 7.2.0.1 Yes
Application cisco firepower_threat_defense 7.2.1 Yes
Application cisco firepower_threat_defense 7.2.2 Yes
Application cisco firepower_threat_defense 7.2.3 Yes
Application cisco firepower_threat_defense 7.3.0 Yes
Application cisco firepower_threat_defense 7.3.1 Yes
Application cisco firepower_threat_defense 7.3.1.1 Yes
Operating System cisco adaptive_security_appliance_software 9.16.1 Yes
Operating System cisco adaptive_security_appliance_software 9.16.1.28 Yes
Operating System cisco adaptive_security_appliance_software 9.16.2 Yes
Operating System cisco adaptive_security_appliance_software 9.16.2.3 Yes
Operating System cisco adaptive_security_appliance_software 9.16.2.7 Yes
Operating System cisco adaptive_security_appliance_software 9.16.2.11 Yes
Operating System cisco adaptive_security_appliance_software 9.16.2.13 Yes
Operating System cisco adaptive_security_appliance_software 9.16.2.14 Yes
Operating System cisco adaptive_security_appliance_software 9.16.3 Yes
Operating System cisco adaptive_security_appliance_software 9.16.3.3 Yes
Operating System cisco adaptive_security_appliance_software 9.16.3.14 Yes
Operating System cisco adaptive_security_appliance_software 9.16.3.15 Yes
Operating System cisco adaptive_security_appliance_software 9.16.3.19 Yes
Operating System cisco adaptive_security_appliance_software 9.16.3.23 Yes
Operating System cisco adaptive_security_appliance_software 9.16.4 Yes
Operating System cisco adaptive_security_appliance_software 9.16.4.9 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.7 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.9 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.10 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.11 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.13 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.15 Yes
Operating System cisco adaptive_security_appliance_software 9.17.1.20 Yes
Operating System cisco adaptive_security_appliance_software 9.18.1 Yes
Operating System cisco adaptive_security_appliance_software 9.18.1.3 Yes
Operating System cisco adaptive_security_appliance_software 9.18.2 Yes
Operating System cisco adaptive_security_appliance_software 9.18.2.5 Yes
Operating System cisco adaptive_security_appliance_software 9.18.2.7 Yes
Operating System cisco adaptive_security_appliance_software 9.19.1 Yes
References