#VU61846 Input validation error in SD850 and SDXR1 - CVE-2021-30338

Vulnerability identifier: #VU61846

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-2021-30338

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SD850
Hardware solutions / Firmware
SDXR1
Mobile applications / Mobile firmware & hardware

Vendor: Qualcomm

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in TrustZone memory transfer interface in core subsystem. A malicious application can gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SD850: All versions

SDXR1: All versions

---

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

---

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.