#VU26973 Buffer overflow in Cisco Wireless LAN Controller - CVE-2020-3273

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Main Vulnerability Database Vulnerabilities #VU26973

#VU26973 Buffer overflow in Cisco Wireless LAN Controller - CVE-2020-3273

Published: April 16, 2020


Vulnerability identifier: #VU26973
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-2020-3273
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Wireless LAN Controller
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 when processing the 802.11 Generic Advertisement Service (GAS) frames. A remote attacker can send a specially crafted 802.11 GAS frame over the air to an access point (AP), trigger memory corruption and cause a denial of service condition on the target system.



Remediation

Install updates from vendor's website.

External links