DEBIAN-CVE-2021-20257

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Source
https://security-tracker.debian.org/tracker/CVE-2021-20257
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-20257.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-20257
Upstream
Published
2022-03-16T15:15:09Z
Modified
2025-09-25T22:40:32Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in processtxdesc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

References

Affected packages

Debian:11 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:5.2+dfsg-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:5.2+dfsg-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:5.2+dfsg-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:5.2+dfsg-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}