CVE-2022-33744

Katalog CVE

CVSS 4.7 · Medium EPSS 0,31%

Kerentanan pada linux kernel, debian linux. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.

Rincian

Terbit di NVD

5 Juli 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 22,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://xenbits.xen.org/xsa/advisory-406.html patch · advisory vendor
• https://xenbits.xenproject.org/xsa/advisory-406.txt advisory vendor
• http://www.openwall.com/lists/oss-security/2022/07/05/4 mailing list · patch · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html mailing list · advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5191 advisory pihak ketiga