CVE-2021-43057

Katalog CVE

CVSS 7.8 · High EPSS 0,49%

Kerentanan Use After Free pada linux kernel, netapp h300s firmware +7 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.

Rincian

Terbit di NVD

28 Oktober 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)

0,49% peluang dieksploitasi; lebih tinggi dari 40,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8 patch · release notes · advisory vendor
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd87155... patch · advisory vendor
• https://bugs.chromium.org/p/project-zero/issues/detail?id=2229 exploit · patch · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20211125-0001/ advisory pihak ketiga