CVE-2022-20927

Description

A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connections. An attacker could exploit this vulnerability by ensuring that the device will connect to an SSL/TLS server that is using specific encryption parameters. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a DoS condition.

CVSS breakdown

Affected products

• Cisco / adaptive_security_appliance_software9.14.3.11 – 9.14.3.11
• Cisco / adaptive_security_appliance_software9.13.1 – 9.13.1
• Cisco / adaptive_security_appliance_software9.13.1.2 – 9.13.1.2
• Cisco / adaptive_security_appliance_software9.13.1.7 – 9.13.1.7
• Cisco / adaptive_security_appliance_software9.13.1.10 – 9.13.1.10
• Cisco / adaptive_security_appliance_software9.13.1.12 – 9.13.1.12
• Cisco / adaptive_security_appliance_software9.13.1.13 – 9.13.1.13
• Cisco / adaptive_security_appliance_software9.13.1.16 – 9.13.1.16
• Cisco / adaptive_security_appliance_software9.13.1.19 – 9.13.1.19
• Cisco / adaptive_security_appliance_software9.13.1.21 – 9.13.1.21
• Cisco / adaptive_security_appliance_software9.14.1 – 9.14.1
• Cisco / adaptive_security_appliance_software9.14.1.10 – 9.14.1.10
• Cisco / adaptive_security_appliance_software9.14.1.15 – 9.14.1.15
• Cisco / adaptive_security_appliance_software9.14.1.19 – 9.14.1.19
• Cisco / adaptive_security_appliance_software9.14.1.30 – 9.14.1.30
• Cisco / adaptive_security_appliance_software9.14.2 – 9.14.2
• Cisco / adaptive_security_appliance_software9.14.2.4 – 9.14.2.4
• Cisco / adaptive_security_appliance_software9.14.2.8 – 9.14.2.8
• Cisco / adaptive_security_appliance_software9.14.2.13 – 9.14.2.13
• Cisco / adaptive_security_appliance_software9.14.2.15 – 9.14.2.15
• Cisco / adaptive_security_appliance_software9.14.3 – 9.14.3
• Cisco / adaptive_security_appliance_software9.14.3.1 – 9.14.3.1
• Cisco / adaptive_security_appliance_software9.14.3.9 – 9.14.3.9
• Cisco / adaptive_security_appliance_software9.14.3.13 – 9.14.3.13
• Cisco / adaptive_security_appliance_software9.14.3.15 – 9.14.3.15
• Cisco / adaptive_security_appliance_software9.14.3.18 – 9.14.3.18
• Cisco / adaptive_security_appliance_software9.15.1 – 9.15.1
• Cisco / adaptive_security_appliance_software9.15.1.1 – 9.15.1.1
• Cisco / adaptive_security_appliance_software9.15.1.7 – 9.15.1.7
• Cisco / adaptive_security_appliance_software9.15.1.10 – 9.15.1.10
• Cisco / adaptive_security_appliance_software9.15.1.15 – 9.15.1.15
• Cisco / adaptive_security_appliance_software9.15.1.16 – 9.15.1.16
• Cisco / adaptive_security_appliance_software9.15.1.17 – 9.15.1.17
• Cisco / adaptive_security_appliance_software9.15.1.21 – 9.15.1.21
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3.9 – 9.14.3.9
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3.13 – 9.14.3.13
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3.18 – 9.14.3.18
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3.11 – 9.14.3.11
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.21 – 9.15.1.21
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.1 – 9.15.1.1
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.1 – 9.14.1
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.17 – 9.15.1.17
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.16 – 9.15.1.16
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.15 – 9.15.1.15
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.10 – 9.15.1.10
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1.7 – 9.15.1.7
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.15.1 – 9.15.1
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3.15 – 9.14.3.15
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.1.10 – 9.14.1.10
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.1.15 – 9.14.1.15
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.1.19 – 9.14.1.19
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.1.30 – 9.14.1.30
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.2 – 9.14.2
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.2.4 – 9.14.2.4
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.2.8 – 9.14.2.8
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.2.13 – 9.14.2.13
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.2.15 – 9.14.2.15
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3 – 9.14.3
• Cisco / Cisco Adaptive Security Appliance (ASA) Software9.14.3.1 – 9.14.3.1
• Cisco / Cisco FirePOWER Services Software for ASAN/A – N/A
• Cisco / Cisco Firepower Threat Defense Software6.7.0 – 6.7.0
• Cisco / Cisco Firepower Threat Defense Software6.7.0.2 – 6.7.0.2
• Cisco / Cisco Firepower Threat Defense Software6.7.0.3 – 6.7.0.3
• Cisco / Cisco Firepower Threat Defense Software6.6.0 – 6.6.0
• Cisco / Cisco Firepower Threat Defense Software6.6.0.1 – 6.6.0.1
• Cisco / Cisco Firepower Threat Defense Software6.6.1 – 6.6.1
• Cisco / Cisco Firepower Threat Defense Software6.6.3 – 6.6.3
• Cisco / Cisco Firepower Threat Defense Software6.6.4 – 6.6.4
• Cisco / Cisco Firepower Threat Defense Software6.6.5 – 6.6.5
• Cisco / Cisco Firepower Threat Defense Software6.6.5.1 – 6.6.5.1
• Cisco / Cisco Firepower Threat Defense Software6.6.5.2 – 6.6.5.2
• Cisco / Cisco Firepower Threat Defense Software6.7.0.1 – 6.7.0.1
• Cisco / firepower_services_software_for_asa
• Cisco / secure_firewall_threat_defense6.6.1 – 6.6.1
• Cisco / secure_firewall_threat_defense6.6.0.1 – 6.6.0.1
• Cisco / secure_firewall_threat_defense6.6.0 – 6.6.0
• Cisco / secure_firewall_threat_defense6.5.0 – 6.5.0.5
• Cisco / secure_firewall_threat_defense6.6.5.1 – 6.6.5.1
• Cisco / secure_firewall_threat_defense6.6.5 – 6.6.5
• Cisco / secure_firewall_threat_defense6.6.3 – 6.6.3
• Cisco / secure_firewall_threat_defense6.6.4 – 6.6.4

References

• VENDOR_ADVISORYhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ssl-client-dos-cCrQPkA