CVE-2024-6564 Buffer overflow in Rensas RCAR

2024-07-0815:18:17

CWE-120

ASRG

www.cve.org

buffer overflow

rensas rcar

rcar_dev_init

secure boot bypass

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

9.2%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "arm-trusted-firmware",
    "product": "rcar_gen3_v2.5",
    "programFiles": [
      "https://github.com/renesas-rcar/arm-trusted-firmware/blob/rcar_gen3_v2.5/drivers/renesas/common/io/io_rcar.c"
    ],
    "repo": "https://github.com/renesas-rcar/arm-trusted-firmware/",
    "vendor": "Renesas",
    "versions": [
      {
        "lessThanOrEqual": "c9fb3558410032d2660c7f3b7d4b87dec09fe2f2",
        "status": "affected",
        "version": "c2f286820471ed276c57e603762bd831873e5a17",
        "versionType": "git"
      }
    ]
  }
]