CVSS 5.5 · Medium EPSS 0,17%
Kerentanan Use of Uninitialized Resource pada linux kernel, debian linux. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: comedi: Fix initialization of data for instructions that write to subdevice Some Comedi subdevice instruction handlers are known to access instruction data elements beyond the first `insn->n` elements in some cases. The `do_insn_ioctl()` and `do_insnlist_ioctl()` functions allocate at least `MIN_SAMPLES` (16) data elements to deal with this, but they do not initialize all of that. For Comedi instruction codes that write to the subdevice, the first `insn->n` data elements are copied from user-space, but the remaining elements are left uninitialized. That could be a problem if the subdevice instruction handler reads the uninitialized data. Ensure that the first `MIN_SAMPLES` elements are initialized before calling these instruction handlers, filling the uncopied elements with 0. For `do_insnlist_ioctl()`, the same data buffer elements are used for handling a list of instructions, so ensure the first `MIN_SAMPLES` elements are initialized for each instruction that writes to the subdevice.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 2.6.29 hingga sebelum 5.4.297 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.241 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.190 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.147 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.100 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.12.40 |
| linux | linux kernel | Versi 6.13 hingga sebelum 6.15.8 |
| linux | linux kernel | Versi 6.16 rc1 |
| linux | linux kernel | Versi 6.16 rc2 |
| linux | linux kernel | Versi 6.16 rc3 |
| linux | linux kernel | Versi 6.16 rc4 |
| linux | linux kernel | Versi 6.16 rc5 |
| linux | linux kernel | Versi 6.16 rc6 |
| debian | debian linux | Versi 11.0 |