#VU81330 Missing Authorization in UNISOC products - CVE-2023-40638

Vulnerability identifier: #VU81330

Vulnerability risk: Low

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

CVE-ID: CVE-2023-40638

CWE-ID: CWE-862

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
T760
Mobile applications / Mobile firmware & hardware
T770
Mobile applications / Mobile firmware & hardware
T820
Mobile applications / Mobile firmware & hardware
S8000
Mobile applications / Mobile firmware & hardware

Vendor: UNISOC

Description

The vulnerability allows a local application to crash the entire system.

The vulnerability exists due to a possible missing permission check within the Telecom service in Android. A local application can crash the entire system.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

T760: All versions

T770: All versions

T820: All versions

S8000: All versions

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External links
http://www.unisoc.com/en_us/secy/announcementDetail/1707266966118531074

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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.