#VU62322 Buffer Underwrite ('Buffer Underflow') in Cisco Systems, Inc products - CVE-2022-20683

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Main Vulnerability Database Vulnerabilities #VU62322

#VU62322 Buffer Underwrite ('Buffer Underflow') in Cisco Systems, Inc products - CVE-2022-20683

Published: April 14, 2022


Vulnerability identifier: #VU62322
Vulnerability risk: 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-2022-20683
CWE-ID: CWE-124
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS XE
Catalyst 9800 Series Wireless Controllers
Catalyst 9800-CL Wireless Controllers for Cloud
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 insufficient packet verification for traffic inspected in the Application Visibility and Control (AVC-FNF) feature . A remote attacker can send a specially crafted packet, trigger memory corruption and cause a denial of service condition on the target system.


Remediation

Install updates from vendor's website.

External links