Code execution in several Huawei Smartphones

1) Buffer overflow

EUVDB-ID: #VU46993

Risk: Low

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

CVE-ID: CVE-2020-9247

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error. A local administrator can trick a victim to install a malicious application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei Honor 20 PRO: before 10.1.0.231(C10E3R3P2)

Huawei Mate 20: before 10.1.0.160

Huawei Mate 20 Pro: before 10.1.0.277

Huawei Mate 20 X : before 10.1.0.160

Huawei P30: before 10.1.0.126

Huawei P30 Pro: before 10.1.0.160

Hima-L29C: before 10.1.0.275(C10E4R2P4)

Laya-AL00EP: before 10.1.0.160(C786E160R3P8)

Princeton-AL10B: before 10.1.0.160

Huawei Tony-AL00B: before 10.1.0.160

Yale-L61A: before 10.1.0.226(C10E3R1P1)

Yale-TL00B: before 10.1.0.160(C01E160R8P12)

YaleP-AL10B: before 10.1.0.160(C00E160R8P12)

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200729-03-smartphone-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.