An out-of-bounds write vulnerability in the SPI host command interface of Semtech's LR11xx transceiver firmware where a crafted SPI host command with an oversized length field can cause the firmware to write up to 254 arbitrary bytes past the bounds of an internal, non-persistent memory buffer. Exploitation requires physical access to the device and logical access to the SPI bus.
Attack Parameters
Attack Vector
Physical
Requires physical access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 8
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Semtech Lr1110_Transceiver
cpe:2.3:a:semtech:lr1110_transceiver:*:*:*:*:*:*:*:*
|
0
|
0x0403
|
|
Semtech Lr1110_Transceiver
cpe:2.3:a:semtech:lr1110_transceiver:a1_0303:*:*:*:*:*:*:*
|
— | — |
|
Semtech Lr1110_Modem-E
cpe:2.3:a:semtech:lr1110_modem-e:*:*:*:*:*:*:*:*
|
0
|
2.1.1
|
|
Semtech Lr1120_Transceiver
cpe:2.3:a:semtech:lr1120_transceiver:*:*:*:*:*:*:*:*
|
0
|
0x0203
|
|
Semtech Lr1120_Transceiver
cpe:2.3:a:semtech:lr1120_transceiver:a2_0101:*:*:*:*:*:*:*
|
— | — |
|
Semtech Lr1121_Transceiver
cpe:2.3:a:semtech:lr1121_transceiver:*:*:*:*:*:*:*:*
|
0
|
0x0105
|
|
Semtech Lr1121_Transceiver
cpe:2.3:a:semtech:lr1121_transceiver:a3_0101:*:*:*:*:*:*:*
|
— | — |
|
Semtech Lr1121_Modem-E
cpe:2.3:a:semtech:lr1121_modem-e:*:*:*:*:*:*:*:*
|
0
|
2.1.1
|