CVE-2024-30212

Microchip Harmony 3 Core library allows read and write access to RAM via a SCSI READ or WRITE command

Published May 28, 2024 CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-28143 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.
History

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Subscriptions

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Weaknesses

Sources

Status
PUBLISHED
Assigner
Microchip
Published
Updated
Feb 13, 2025, 5:47 PM
Reserved
Mar 26, 2024, 3:56 AM
Status
Deferred
Published
May 28, 2024, 4:15 PM
Modified
Jun 17, 2026, 7:26 AM