CVE-2021-20255

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Source
https://cve.org/CVERecord?id=CVE-2021-20255
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20255.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-20255
Downstream
Related
Published
2021-03-09T20:15:13.133Z
Modified
2026-07-09T00:07:23.472688Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git / github.com/qemu/qemu

Affected ranges

Type
GIT
Repo
https://github.com/qemu/qemu
Events
Introduced
c25df57ae8f9fe1c72eee2dab37d76d904ac382e
Last affected
c25df57ae8f9fe1c72eee2dab37d76d904ac382e
Database specific 
{
    "extracted_events": [
        {
            "introduced": "9.0"
        },
        {
            "last_affected": "9.0"
        }
    ],
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
}

Affected versions

9.*
9.0
v9.*
v9.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20255.json"