Vulnerability identifier: #VU69671

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-35858

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
mTower
Mobile applications / Apps for mobile phones

Vendor: Samsung

Description
The vulnerability allows a local user to compromise the target system.

The vulnerability exists due memory leak in the TEE_PopulateTransientObject and __utee_from_attr functions. A local user can force the application to leak memory and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

mTower: 0.1.0 - 0.3.0

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External links
http://github.com/Samsung/mTower/issues/71
http://github.com/Samsung/mTower/blob/18f4b592a8a973ce5972f4e2658ea0f6e3686284/tee/lib/libutee/tee_api_objects.c#L283
http://github.com/Samsung/mTower/releases/tag/v0.4.1

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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.