#VU61873 Improper access control in Qualcomm products - CVE-2021-35070

Vulnerability identifier: #VU61873

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-35070

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
QCM6125
Mobile applications / Mobile firmware & hardware
QCS6125
Mobile applications / Mobile firmware & hardware
WCD9370
Mobile applications / Mobile firmware & hardware
WCD9375
Mobile applications / Mobile firmware & hardware
WCN3950
Mobile applications / Mobile firmware & hardware
WCN3980
Mobile applications / Mobile firmware & hardware
WSA8810
Mobile applications / Mobile firmware & hardware
WSA8815
Mobile applications / Mobile firmware & hardware
SD665
Hardware solutions / Firmware

Vendor: Qualcomm

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to improper access restrictions in kernel component due to improper SMMU configuration. A local application can gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QCM6125: All versions

QCS6125: All versions

SD665: All versions

WCD9370: All versions

WCD9375: All versions

WCN3950: All versions

WCN3980: All versions

WSA8810: All versions

WSA8815: All versions

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External links
https://www.qualcomm.com/company/product-security/bulletins/april-2022-bulletin

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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.