CVE-2021-3735

Katalog CVE

CVSS 4.4 · Medium EPSS 0,20%

Kerentanan Improper Locking pada qemu, debian linux. Skor CVSS 3.1 4.4 (Medium) menurut NVD.

Deskripsi (NVD)

A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.

Rincian

Terbit di NVD

26 Agustus 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-667: Improper Locking
CWE-400: Uncontrolled Resource Consumption

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 9,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2021-3735 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=1997184 issue tracking · advisory pihak ketiga
• https://security-tracker.debian.org/tracker/CVE-2021-3735 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20250228-0009/