CVSS 5.5 · Medium EPSS 0,23%
Kerentanan pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: tty: vt: initialize unicode screen buffer syzbot reports kernel infoleak at vcs_read() [1], for buffer can be read immediately after resize operation. Initialize buffer using kzalloc(). ---------- #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> #include <linux/fb.h> int main(int argc, char *argv[]) { struct fb_var_screeninfo var = { }; const int fb_fd = open("/dev/fb0", 3); ioctl(fb_fd, FBIOGET_VSCREENINFO, &var); var.yres = 0x21; ioctl(fb_fd, FBIOPUT_VSCREENINFO, &var); return read(open("/dev/vcsu", O_RDONLY), &var, sizeof(var)) == -1; } ----------
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 4.19 hingga sebelum 4.19.256 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.211 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.137 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.61 |
| linux | linux kernel | Versi 5.16 hingga sebelum 5.18.18 |
| linux | linux kernel | Versi 5.19 hingga sebelum 5.19.2 |