In the Linux kernel, the following vulnerability has been resolved:
net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check
The same bounds-check bug fixed for NDP16 in the previous patch also
exists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated
against the total skb length without accounting for ndpoffset, allowing
out-of-bounds reads when the NDP32 is placed near the end of the NTB. Add ndpoffset to the nframes bounds check and use struct_size_t() to
express the NDP-plus-DPE-array size more clearly.
Compile-tested only.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 15
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
4.14.317
|
4.15
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
4.19.285
|
4.20
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.4.245
|
5.5
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.7.1
|
6.6.130
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
6.7
|
6.12.78
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
6.13
|
6.18.20
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
6.19
|
6.19.10
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:5.7:-:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
|
— | — |
References 5
https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16
416baaa9-dc9f-4396-8d5f-8c081fb06d67