CVE-2020-3572High· 8.6▾ TwilightA vulnerability in the SSL/TLS session handler 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) condi…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 47.3 · likelihood 0.4 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 18.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
1.8%
1.8% → 1.8%
A vulnerability in the SSL/TLS session handler 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. The vulnerability is due to a memory leak when closing SSL/TLS connections in a specific state. An attacker could exploit this vulnerability by establishing several SSL/TLS sessions and ensuring they are closed under certain conditions. A successful exploit could allow the attacker to exhaust memory resources in the affected device, which would prevent it from processing new SSL/TLS connections, resulting in a DoS. Manual intervention is required to recover an affected device.
adaptive_security_appliance < 9.6secure_firewall_threat_defense < 6.3.0.6secure_firewall_threat_defense >= 6.4.0, < 6.4.0.10secure_firewall_threat_defense >= 6.5.0, < 6.6.1adaptive_security_appliance_software >= 9.8.0, < 9.8.4.26adaptive_security_appliance_software >= 9.9.0, < 9.9.2.80adaptive_security_appliance_software >= 9.10.0, < 9.10.1.44adaptive_security_appliance_software >= 9.12.0, < 9.12.4.4adaptive_security_appliance_software >= 9.13.0, < 9.13.1.13adaptive_security_appliance_software >= 9.14.0, < 9.14.1.19Upgrade past the affected range:
adaptive_security_appliance 9.6secure_firewall_threat_defense 6.6.1adaptive_security_appliance_software 9.14.1.19Connected by shared product, vendor, weakness, or advisory.
CVE-2020-3554High· 7.5A vulnerability in the TCP packet processing 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) conditi…
CVE-2020-3529High· 8.6A vulnerability in the SSL VPN negotiation process for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a reload of an affected de…
CVE-2020-3528High· 8.6A vulnerability in the OSPF Version 2 (OSPFv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected devi…
CVE-2020-3306High· 7.5A vulnerability in the DHCP module 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 the …
CVE-2020-3305High· 7.5A vulnerability in the implementation of the Border Gateway Protocol (BGP) module in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to ca…
CVE-2020-3563High· 8.6A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device