Heap-based buffer overflow in Cisco Firewall Threat Defense (FTD) - CVE-2022-20946

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Main Vulnerability Database Vulnerabilities #VU69206

Heap-based buffer overflow in Cisco Firewall Threat Defense (FTD) - CVE-2022-20946

Published: November 10, 2022


Vulnerability identifier: #VU69206
CSH Severity: High
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:Amber
CVE-ID: CVE-2022-20946
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Firewall Threat Defense (FTD)
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 a boundary error in the generic routing encapsulation (GRE) tunnel decapsulation feature. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and cause a denial of service condition on the target system.


Remediation

Install updates from vendor's website.

External links