Renesas rcar_gen3_v2.5 up to c9fb3558410032d2660c7f3b7d4b87dec09fe2f2 rcar_dev_init rcar_image_number buffer overflow

Summaryinfo

A vulnerability labeled as critical has been found in Renesas rcar_gen3_v2.5 up to c9fb3558410032d2660c7f3b7d4b87dec09fe2f2. Affected by this vulnerability is the function rcar_dev_init. Executing a manipulation of the argument rcar_image_number can lead to buffer overflow. This vulnerability is registered as CVE-2024-6564. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in Renesas rcar_gen3_v2.5 up to c9fb3558410032d2660c7f3b7d4b87dec09fe2f2 and classified as critical. This vulnerability affects the function rcar_dev_init. The manipulation of the argument rcar_image_number with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published by Tomer Fichman as c9fb3558410032d2660c7f3b7d4b87dec09fe2f2. The advisory is available at github.com. This vulnerability was named CVE-2024-6564 since 07/08/2024. The exploitation appears to be easy. Local access is required to approach this attack. The exploitation requires an enhanced level of successful authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/10/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Renesas

Name

• rcar_gen3_v2.5

Version

• c9fb3558410032d2660c7f3b7d4b87dec09fe2f2

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
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Threat Intelligenceinfo

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Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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