CVE-2021-3507

描述

A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.

如何修補 CVE-2021-3507

要修補 CVE-2021-3507,請將受影響套件升級到下列已修補版本。

• —升級至 1:5.2+dfsg-11+deb11u3 或更新版本

CVE-2021-3507 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 1:5.2+dfsg-11+deb11u3

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-3507