#VU66421 Buffer overflow in Intel products - CVE-2021-33847

Vulnerability identifier: #VU66421

Vulnerability risk: Low

CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-33847

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Intel Wi-Fi 6 AX411
Hardware solutions / Firmware
Intel Wi-Fi 6 AX211
Hardware solutions / Firmware
Intel Wi-Fi 6 AX210
Hardware solutions / Firmware
Intel Wi-Fi 6 AX201
Hardware solutions / Firmware
Intel Wi-Fi 6 AX200
Hardware solutions / Firmware
Intel Wireless-AC 9560
Hardware solutions / Firmware
Intel Wireless-AC 9462
Hardware solutions / Firmware
Intel Wireless-AC 9461
Hardware solutions / Firmware
Intel Wireless-AC 9260
Hardware solutions / Firmware
Intel Dual Band Wireless-AC 8265
Hardware solutions / Firmware
Intel Dual Band Wireless-AC 8260
Hardware solutions / Firmware
Intel Dual Band Wireless-AC 3168
Hardware solutions / Firmware
Intel Wireless 7265 (Rev D) Family
Hardware solutions / Firmware
Intel Dual Band Wireless-AC 3165
Hardware solutions / Firmware
Killer Wi-Fi 6E AX1690
Hardware solutions / Firmware
Killer Wi-Fi 6E AX1675
Hardware solutions / Firmware
Killer Wi-Fi 6 AX1650
Hardware solutions / Firmware
Killer Wireless-AC 1550
Hardware solutions / Firmware

Vendor: Intel

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in firmware. A local user can trigger memory corruption and gain elevated privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Intel Wi-Fi 6 AX411: before 22.120

Intel Wi-Fi 6 AX211: before 22.120

Intel Wi-Fi 6 AX210: before 22.120

Intel Wi-Fi 6 AX201: before 22.120

Intel Wi-Fi 6 AX200: before 22.120

Intel Wireless-AC 9560: before 22.120

Intel Wireless-AC 9462: before 22.120

Intel Wireless-AC 9461: before 22.120

Intel Wireless-AC 9260: before 22.120

Intel Dual Band Wireless-AC 8265: before 22.120

Intel Dual Band Wireless-AC 8260: before 22.120

Intel Dual Band Wireless-AC 3168: before 22.120

Intel Wireless 7265 (Rev D) Family: before 22.120

Intel Dual Band Wireless-AC 3165: before 22.120

Killer Wi-Fi 6E AX1690: before 22.120

Killer Wi-Fi 6E AX1675: before 22.120

Killer Wi-Fi 6 AX1650: before 22.120

Killer Wireless-AC 1550: before 22.120

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00628.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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