CVE-2022-2962

Katalog CVE

CVSS 7.8 · High EPSS 0,40%

Kerentanan Uncontrolled Resource Consumption pada qemu. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Rincian

Terbit di NVD

13 September 2022

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-400: Uncontrolled Resource Consumption
CWE-662: Improper Synchronization

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://gitlab.com/qemu-project/qemu/-/commit/36a894aeb64a2e02871016da1c37d4a4ca109182 patch · advisory pihak ketiga
• https://gitlab.com/qemu-project/qemu/-/issues/1171 exploit · issue tracking · advisory pihak ketiga