CVE-2021-20255
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
09/03/2021
Last modified:
05/08/2022
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.
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Base Score 2.0
2.10
Severity 2.0
LOW
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | ||
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://bugzilla.redhat.com/show_bug.cgi?id=1930646
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=/eepro100_stackoverflow1
- https://security.netapp.com/advisory/ntap-20210507-0003/
- https://www.openwall.com/lists/oss-security/2021/02/25/1