CVE-2023-20042
published 2023-11-01CVE-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…
PriorityP347high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
EPSS
0.68%
48.2th percentile
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.
Affected
103 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | adaptive_security_appliance | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
| cisco | adaptive_security_appliance_software | — | — |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
vendor_cisco6.8MEDIUM
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Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability
vendor_cisco·2023-11-01·CVSS 6.8
CVE-2023-20042 [MEDIUM] CWE-404 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability
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 depl
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2023-20042 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability
CVE-2023-20042: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability
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 e
GHSA
GHSA-2c63-fqw2-3fhm: A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Softwar
ghsa_unreviewed·2023-11-01
CVE-2023-20042 [MEDIUM] CWE-404 GHSA-2c63-fqw2-3fhm: A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Softwar
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-11-01
Published