CVE-2021-28691

Katalog CVE

CVSS 7.8 · High EPSS 0,36%

Kerentanan Use After Free pada netapp solidfire baseboard management controller, linux kernel +9 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.

Rincian

Terbit di NVD

29 Juni 2021

Terakhir diubah

26 Agustus 2026

Status NVD

Analyzed

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)

0,36% peluang dieksploitasi; lebih tinggi dari 28,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.gentoo.org/glsa/202107-30 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20210805-0002/ advisory pihak ketiga
• https://xenbits.xenproject.org/xsa/advisory-374.txt advisory pihak ketiga