CVE-2021-20203low
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://bugzilla.redhat.com/show_bug.cgi?id=1922441
https://bugs.launchpad.net/qemu/+bug/1913873
https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html
https://security.gentoo.org/glsa/202208-27
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Details
Source: MITRE
Published: 2021-02-25
Updated: 2022-09-30
Type: CWE-190
Risk Information
CVSS v2
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
CVSS v3
Base Score: 3.2
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Impact Score: 1.4
Exploitability Score: 1.5
Severity: LOW