Secure boot bypass in Renesas R-Car firmware



Published: 2024-10-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-6564
CWE-ID CWE-120
Exploitation vector Local
Public exploit N/A
Vulnerable software
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arm-trusted-firmware
Hardware solutions / Firmware

Vendor renesas-rcar

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU98848

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-6564

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

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

CPE2.3 External links

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


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.



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