Vulnerability identifier: #VU29498

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-1839

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Huawei Mate 30
Client/Desktop applications / Multimedia software

Vendor: Huawei

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a race condition when there is a timing window exists in which certain pointer members can be modified by another process that is operating concurrently. A local administrator can trick a victim into running a specially crafted application with high privilege, exploit the race and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei Mate 30: All versions

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External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200701-04-smartphone-en

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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. However, proof of concept for this vulnerability is available.