Your submission was sent successfully! Close

CVE-2021-3507

Published: 6 May 2021

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.

Priority

Low

CVSS 3 base score: 6.1

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
bionic
Released (1:2.11+dfsg-1ubuntu7.40)
focal
Released (1:4.2-3ubuntu6.23)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish
Released (1:6.0+dfsg-2expubuntu1.3)
jammy
Released (1:6.2+dfsg-2ubuntu6.2)
precise Does not exist

trusty Needed

upstream Needs triage

xenial Needed

Patches:
upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=defac5e2fbddf8423a354ff0454283a2115e1367
qemu-kvm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Ignored
(end of ESM support, was deferred [2022-03-28])
trusty Does not exist

upstream Needs triage

xenial Does not exist