CVE-2022-48771

Katalog CVE

CVSS 7.8 · High EPSS 0,21%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix stale file descriptors on failed usercopy A failing usercopy of the fence_rep object will lead to a stale entry in the file descriptor table as put_unused_fd() won't release it. This enables userland to refer to a dangling 'file' object through that still valid file descriptor, leading to all kinds of use-after-free exploitation scenarios. Fix this by deferring the call to fd_install() until after the usercopy has succeeded.

Rincian

Terbit di NVD

20 Juni 2024

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,21% peluang dieksploitasi; lebih tinggi dari 10,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d patch
• https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565 patch
• https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c patch
• https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82 patch
• https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c patch
• https://git.kernel.org/stable/c/ae2b20f27732fe92055d9e7b350abc5cdf3e2414 patch
• https://git.kernel.org/stable/c/e8d092a62449dcfc73517ca43963d2b8f44d0516 patch