CVE-2021-20203

Description

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.

References

https://security.gentoo.org/glsa/202208-27

https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html

https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html

https://bugzilla.redhat.com/show_bug.cgi?id=1922441

https://bugs.launchpad.net/qemu/+bug/1913873

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3