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CVE-2021-3507

Published: 06 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
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Deferred
(2021-11-17)
Ubuntu 21.04 (Hirsute Hippo) Deferred
(2021-11-17)
Ubuntu 20.04 LTS (Focal Fossa) Deferred
(2021-11-17)
Ubuntu 18.04 LTS (Bionic Beaver) Deferred
(2021-11-17)
Ubuntu 16.04 ESM (Xenial Xerus) Deferred
(2021-11-17)
Ubuntu 14.04 ESM (Trusty Tahr) Deferred
(2021-11-17)
qemu-kvm
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Does not exist

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist