Improper Resource Shutdown or Release in Cisco Adaptive Security Appliance (ASA) - CVE-2023-20042

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Main Vulnerability Database Vulnerabilities #VU82663

Improper Resource Shutdown or Release in Cisco Adaptive Security Appliance (ASA) - CVE-2023-20042

Published: November 1, 2023


Vulnerability identifier: #VU82663
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-20042
CWE-ID: CWE-404
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error within the SSL/TLS session handling process in the AnyConnect SSL VPN feature. A remote attacker can send specially crafted SSL/TLS traffic to an affected device and perform a denial of service (DoS) attack.



Remediation

Install updates from vendor's website.

External links