Samsung Exynos 1330 slsi_nan_get_security_info_nl heap-based overflow

Summaryinfo

A vulnerability was found in Samsung Exynos 980, Exynos 850, Exynos 1280, Exynos 1380 and Exynos 1330. It has been rated as critical. Affected is the function slsi_nan_get_security_info_nl. This manipulation causes heap-based overflow. This vulnerability is handled as CVE-2024-27377. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Samsung Exynos 980, Exynos 850, Exynos 1280, Exynos 1380 and Exynos 1330. Affected by this vulnerability is the function slsi_nan_get_security_info_nl. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Samsung Mobile Processor Exynos 980, Exynos 850, Exynos 1280, Exynos 1380, and Exynos 1330. In the function slsi_nan_get_security_info_nl(), there is no input validation check on sec_info->key_info.body.pmk_info.pmk_len coming from userspace, which can lead to a heap overwrite.

It is possible to read the advisory at semiconductor.samsung.com. This vulnerability is known as CVE-2024-27377 since 02/25/2024. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/29/2025).

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

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Productinfo

Vendor

• Samsung

Name

• Exynos 850
• Exynos 980
• Exynos 1280
• Exynos 1330
• Exynos 1380

License

• commercial

Website

• Vendor: https://www.samsung.com/

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