#VU71988 NULL pointer dereference in MediaTek products - CVE-2022-32663

Vulnerability identifier: #VU71988

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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:Green]

CVE-ID: CVE-2022-32663

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MT5221
Mobile applications / Mobile firmware & hardware
MT7603
Mobile applications / Mobile firmware & hardware
MT7613
Mobile applications / Mobile firmware & hardware
MT7615
Mobile applications / Mobile firmware & hardware
MT7622
Mobile applications / Mobile firmware & hardware
MT7628
Mobile applications / Mobile firmware & hardware
MT7629
Mobile applications / Mobile firmware & hardware
MT7668
Mobile applications / Mobile firmware & hardware
MT7902
Mobile applications / Mobile firmware & hardware
MT7915
Mobile applications / Mobile firmware & hardware
MT7916
Mobile applications / Mobile firmware & hardware
MT7921
Mobile applications / Mobile firmware & hardware
MT7981
Mobile applications / Mobile firmware & hardware
MT7986
Mobile applications / Mobile firmware & hardware
MT8167S
Mobile applications / Mobile firmware & hardware
MT8175
Mobile applications / Mobile firmware & hardware
MT8362A
Mobile applications / Mobile firmware & hardware
MT8365
Mobile applications / Mobile firmware & hardware
MT8385
Mobile applications / Mobile firmware & hardware
MT8532
Mobile applications / Mobile firmware & hardware
MT8788
Mobile applications / Mobile firmware & hardware
MT8518S

Vendor: MediaTek

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in Wi-Fi driver. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MT5221: All versions

MT7603: All versions

MT7613: All versions

MT7615: All versions

MT7622: All versions

MT7628: All versions

MT7629: All versions

MT7668: All versions

MT7902: All versions

MT7915: All versions

MT7916: All versions

MT7921: All versions

MT7981: All versions

MT7986: All versions

MT8167S: All versions

MT8175: All versions

MT8362A: All versions

MT8365: All versions

MT8385: All versions

MT8518S: All versions

MT8532: All versions

MT8788: All versions

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External links
https://corp.mediatek.com/product-security-bulletin/February-2023

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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