NULL pointer dereference in Firepower 2100 Series Firewalls and Cisco Firewall Threat Defense (FTD) - CVE-2024-20339
Published: October 25, 2024
Vulnerability identifier: #VU99339
CSH Severity: High
CVSS v4: 8.7 [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]
CVE-ID: CVE-2024-20339
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the TLS processing feature. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
Firepower 2100 Series Firewalls
Cisco Firewall Threat Defense (FTD)
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2024-20339
Install update from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 6.4.0.18, 7.0.6.2, 7.0.6.3, 7.2.6, 7.2.7, 7.2.8, 7.2.8.1, 7.2.9, 7.4.1, 7.4.1.1, 7.4.2, 7.4.2.1