Denial of service in Huawei P30

1) Input validation error

EUVDB-ID: #VU54593

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22399

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A local attacker can install third-party apps to send specific broadcasts and cause the Bluetooth module to crash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei P30: 10.0.0.195(C432E22R2P5) - 10.0.0.210(C635E3R2P4)

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210707-03-dos-en

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.