CVE-2021-20226

Katalog CVE

CVSS 7.8 · High EPSS 0,44%

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

Deskripsi (NVD)

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.

Rincian

Terbit di NVD

23 Februari 2021

Terakhir diubah

17 Juni 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)

0,44% peluang dieksploitasi; lebih tinggi dari 36,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1873476 issue tracking · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20210401-0001/ advisory pihak ketiga