Access of Memory Location After End of Buffer in Cisco Firewall Threat Defense (FTD) and Cisco Adaptive Security Appliance (ASA) - CVE-2024-20402

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Main Vulnerability Database Vulnerabilities #VU99289

Access of Memory Location After End of Buffer in Cisco Firewall Threat Defense (FTD) and Cisco Adaptive Security Appliance (ASA) - CVE-2024-20402

Published: October 23, 2024


Vulnerability identifier: #VU99289
CSH Severity: Medium
CVSS v4.0: 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-2024-20402
CWE-ID: CWE-788
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)

Detailed vulnerability description

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

The vulnerability exists due to a logic error in memory management when the device is handling SSL VPN connections. A remote attacker can send specially crafted SSL/TLS packets to the SSL VPN server of the affected device and perform a denial of service (DoS) attack.


How to mitigate CVE-2024-20402

Install updates from vendor's website.

Sources