There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4150-1 u-boot security update
EUVD EUVD EUVD-2022-34616 There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.
Ubuntu USN Ubuntu USN USN-5764-1 U-Boot vulnerabilities
Ubuntu USN Ubuntu USN USN-6523-1 u-boot-nezha vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Mon, 21 Apr 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2025-04-21T13:48:54.147Z

Reserved: 2022-07-08T00:00:00.000Z

Link: CVE-2022-2347

cve-icon Vulnrichment

Updated: 2024-08-03T00:32:09.679Z

cve-icon NVD

Status : Modified

Published: 2022-09-23T13:15:10.133

Modified: 2024-11-21T07:00:49.073

Link: CVE-2022-2347

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.