Buffer Overflow in rcar_dev_init Leads to Full Bypass of Secure Boot
CVE-2024-6564

6.7MEDIUM

Key Information:

Vendor

Renesas

Status
Rcar Gen3 V2.5
Vendor
CVE Published:
8 July 2024

What is CVE-2024-6564?

Buffer overflow in "rcar_dev_init" due to using due to using untrusted data (rcar_image_number) as a loop counter before verifying it against RCAR_MAX_BL3X_IMAGE. This could lead to a full bypass of secure boot.

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Affected Version(s)

rcar_gen3_v2.5 c2f286820471ed276c57e603762bd831873e5a17

References

https://github.com/renesas-rcar/arm-trusted-firmware/comm...
https://asrg.io/security-advisories/cve-2024-6564/
third-party-advisory

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tomer Fichman
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