CVE-2021-20255

medium

Description

A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

References

https://www.openwall.com/lists/oss-security/2021/02/25/1

https://security.netapp.com/advisory/ntap-20210507-0003/

https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1

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

https://bugzilla.redhat.com/show_bug.cgi?id=1930646

Details

Source: Mitre, NVD

Published: 2021-03-09

Updated: 2022-08-05

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium