DEBIAN-CVE-2023-3354

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Source
https://security-tracker.debian.org/tracker/CVE-2023-3354
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3354.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-3354
Upstream
Published
2023-07-11T17:15:13Z
Modified
2025-09-30T05:17:44.788032Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.

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-11+deb11u3

Affected versions

1:5.*

1:5.2+dfsg-11
1:5.2+dfsg-11+deb11u1
1:5.2+dfsg-11+deb11u2

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
1:7.2+dfsg-7+deb12u2

Affected versions

1:7.*

1:7.2+dfsg-7
1:7.2+dfsg-7+deb12u1
1:7.2+dfsg-7+deb12u2~bpo11+1

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
1:8.0.4+dfsg-1

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
1:8.0.4+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}