#VU61070 Type conversion in Qualcomm products - CVE-2021-35110

Vulnerability identifier: #VU61070

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-35110

CWE-ID: CWE-704

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SD 8 Gen1 5G
Mobile applications / Mobile firmware & hardware
WCD9380
Mobile applications / Mobile firmware & hardware
WCN6855
Mobile applications / Mobile firmware & hardware
WCN6856
Mobile applications / Mobile firmware & hardware
WSA8830
Mobile applications / Mobile firmware & hardware
WSA8835
Mobile applications / Mobile firmware & hardware

Vendor: Qualcomm

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a type conversion error in the Boot subsystem when validating hash segment of file. A malicious application can supply a specially crafted file and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SD 8 Gen1 5G: All versions

WCD9380: All versions

WCN6855: All versions

WCN6856: All versions

WSA8830: All versions

WSA8835: All versions

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External links
https://www.qualcomm.com/company/product-security/bulletins/march-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.