Semtech LR11xx Encrypted Firmware Disclosure
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Semtech | LR1110 | unaffected |
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| Semtech | LR1120 | unaffected |
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| Semtech | LR1121 | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Semtech | Lr1110 |
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| Semtech | Lr1120 |
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| Semtech | Lr1121 |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.117% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Semtech LR11xx LoRa transceivers running early versions of firmware contains an information disclosure vulnerability in its firmware validation functionality. When a host issues a firmware validity check command via the SPI interface, the device decrypts the provided encrypted firmware package block-by-block to validate its integrity. However, the last decrypted firmware block remains uncleared in memory after the validation process completes. An attacker with access to the SPI interface can subsequently issue memory read commands to retrieve the decrypted firmware contents from this residual memory, effectively bypassing the firmware encryption protection mechanism. The attack requires physical access to the device's SPI interface. | |
| Title | Semtech LR11xx Encrypted Firmware Disclosure | |
| First Time appeared |
Semtech
Semtech lr1110 Semtech lr1120 Semtech lr1121 |
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| Weaknesses | CWE-226 | |
| CPEs | cpe:2.3:a:semtech:lr1110:*:*:*:*:*:*:*:* cpe:2.3:a:semtech:lr1120:*:*:*:*:*:*:*:* cpe:2.3:a:semtech:lr1121:*:*:*:*:*:*:*:* |
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| Vendors & Products |
Semtech
Semtech lr1110 Semtech lr1120 Semtech lr1121 |
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| References |
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| Metrics |
cvssV4_0
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