Buffer overflow in Cisco Wireless LAN Controller - CVE-2020-3273
Published: April 16, 2020
Vulnerability identifier: #VU26973
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-2020-3273
CWE-ID: CWE-119
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 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.
Affected software
Cisco Wireless LAN Controller
How to mitigate CVE-2020-3273
Install updates from vendor's website.
Cisco Wireless LAN Controller - addressed in versions 8.5.160.0, 8.8.130.0, 8.10.121.0