A vulnerability classified as critical has been found in Nordic nRF5 SDK for Mesh 5.0. Affected is an unknown code block of the component Packet Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as 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(). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In Nordic nRF5 SDK for Mesh 5.0, a heap overflow vulnerability can be triggered by sending a series of segmented packets with SegO > SegN

The weakness was disclosed 08/16/2022. The advisory is available at docs.google.com. This vulnerability is traded as CVE-2022-35624 since 07/11/2022. The technical details are unknown and an exploit is not available.

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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• Nordic

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• nRF5 SDK for Mesh

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• 5.0

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