What is CVE-2024-6564?

CVE-2024-6564 is a medium-severity vulnerability in Renesas Rcar_gen3_v2.5, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2024-07-08.

How severe is CVE-2024-6564?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Is CVE-2024-6564 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Renesas Rcar_gen3_v2.5

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.

Vulnerability class: Buffer Overflow

EPSS: 0.000 (5.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Renesas Rcar_gen3_v2.5 — versions c2f286820471ed276c57e603762bd831873e5a17

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

github.com/renesas-rcar/arm-trusted-firmware/commit/c9fb3558410032d2660c7f3b7d4…
asrg.io/security-advisories/cve-2024-6564/ (third-party-advisory)

Frequently asked questions

What is CVE-2024-6564?: CVE-2024-6564 is a medium-severity vulnerability in Renesas Rcar_gen3_v2.5, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.7/10. Published 2024-07-08.
How severe is CVE-2024-6564?: Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2024-6564 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.