#VU76547 Out-of-bounds write in Samsung Mobile Firmware - CVE-2023-21489

Vulnerability identifier: #VU76547

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-21489

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Samsung Mobile Firmware
Mobile applications / Mobile firmware & hardware

Vendor: Samsung

Description

The vulnerability allows an attacker to compromise the vulnerable device.

The vulnerability exists due to a boundary error in bootloader. An attacker with physical access to device can trigger an out-of-bounds write and execute arbitrary code on the system..

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Samsung Mobile Firmware: before SMR-MAY-2023

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External links
https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=05

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.