| CVE-2022-2347 | Date: (C)2022-09-24 (M)2024-01-05 |
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.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 7.1 | CVSS Score : |
| Exploit Score: 0.5 | Exploit Score: |
| Impact Score: 6.0 | Impact Score: |
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| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: PHYSICAL | Access Vector: |
| Attack Complexity: HIGH | Access Complexity: |
| Privileges Required: NONE | Authentication: |
| User Interaction: NONE | Confidentiality: |
| Scope: CHANGED | Integrity: |
| Confidentiality: HIGH | Availability: |
| Integrity: HIGH | |
| Availability: HIGH | |
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