CVE-2024-30212

High

Description

If a SCSI READ(10) command is initiated via USB using the largest LBA (0xFFFFFFFF) with it's default block size of 512 and a count of 1, the first 512 byte of the 0x80000000 memory area is returned to the user. If the block count is increased, the full RAM can be exposed. The same method works to write to this memory area. If RAM contains pointers, those can be - depending on the application - overwritten to return data from any other offset including Progam and Boot Flash.

SeverityHigh

CVSS7.0

Exploit probability—

ProductMPLAB® Harmony 3 Core Module

PublishedMay 28, 2024

First seenMay 28, 2024

Weakness typeCWE-190Integer overflow

How to fix

Update

Microchip MPLAB® Harmony 3 Core Module3.13.4 or later

Patches

github.com/Microchip-MPLAB-Harmony/core/commit/d4608a4f1a140bd899cd4337cdbfb343a4339216

Vendor advisories

github.com/Microchip-MPLAB-Harmony/core/blob/master/release_notes.md

Affected products

Product	Affected versions	Fixed in
Microchip MPLAB® Harmony 3 Core Module	3.0.0 ≤ v < 3.13.4	3.13.4

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