CVE-2021-20203

Published: 25 February 2021

An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

Priority

Low

CVSS 3 base score: 3.2

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Deferred
(2021-04-12)
Ubuntu 20.10 (Groovy Gorilla) Deferred
(2021-04-12)
Ubuntu 20.04 LTS (Focal Fossa) Deferred
(2021-04-12)
Ubuntu 18.04 LTS (Bionic Beaver) Deferred
(2021-04-12)
Ubuntu 16.04 LTS (Xenial Xerus) Deferred
(2021-04-12)
Ubuntu 14.04 ESM (Trusty Tahr) Deferred
(2021-04-12)
qemu-kvm
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist