#VU98848 Buffer overflow in arm-trusted-firmware - CVE-2024-6564

Vulnerability identifier: #VU98848

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-6564

CWE-ID: CWE-120

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
arm-trusted-firmware
Hardware solutions / Firmware

Vendor: renesas-rcar

Description

The vulnerability allows a local user to bypass secure boot implementation.

The vulnerability exists due to a boundary error in rcar_dev_init. A local user can trigger a buffer overflow and bypass secure boot protections.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

arm-trusted-firmware: All versions

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External links
https://github.com/renesas-rcar/arm-trusted-firmware/commit/c9fb3558410032d2660c7f3b7d4b87dec09fe2f2
https://asrg.io/security-advisories/cve-2024-6564/

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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.