Denial of service in Cisco Firepower Threat Defense Software for Firepower 2100 Series



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-20339
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Cisco Firepower Threat Defense (FTD)
Hardware solutions / Security hardware applicances

Firepower 2100 Series Firewalls
Hardware solutions / Firmware

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU99339

Risk: High

CVSSv4.0: 6.6 [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:Amber]

CVE-ID: CVE-2024-20339

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Firepower Threat Defense (FTD): 6.2.3 - 7.3.1.2

Firepower 2100 Series Firewalls: All versions

CPE2.3 External links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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