CVSS 7.8 · High EPSS 1,1%
Kerentanan Access of Resource Using Incompatible Type ('Type Confusion') pada linux kernel, canonical ubuntu linux. Skor CVSS 3.1 7.8 (High) menurut NVD.
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() calls fdget(oldfd), then without further checks passes the resulting file* into shiftfs_real_fdget(), which casts file->private_data, a void* that points to a filesystem-dependent type, to a "struct shiftfs_file_info *". As the private_data is not required to be a pointer, an attacker can use this to cause a denial of service or possibly execute arbitrary code.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 5.0 |
| linux | linux kernel | Versi 5.3 |
| canonical | ubuntu linux | Versi 18.04 |
| canonical | ubuntu linux | Versi 19.04 |