CVE-2021-20292

Katalog CVE

CVSS 6.7 · Medium EPSS 0,85%

Kerentanan Use After Free pada linux kernel, fedoraproject fedora +2 lainnya. Skor CVSS 3.1 6.7 (Medium) menurut NVD.

Deskripsi (NVD)

There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Rincian

Terbit di NVD

28 Mei 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,85% peluang dieksploitasi; lebih tinggi dari 57,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1939686 issue tracking · patch · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html mailing list · advisory pihak ketiga