CVE-2023-2861

Qemu: 9pfs: improper access control on special files

Published Dec 6, 2023 CVSS 3.1 · 6 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-3759-1 qemu security update
EUVD EUVD EUVD-2023-34310 A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
Ubuntu USN Ubuntu USN USN-6567-1 QEMU vulnerabilities
Ubuntu USN Ubuntu USN USN-8172-1 kvmtool vulnerabilities
Ubuntu USN Ubuntu USN USN-8412-1 QEMU vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
fedora
Published
Updated
Aug 2, 2024, 6:33 AM
Reserved
May 24, 2023, 7:54 AM
Status
Modified
Published
Dec 6, 2023, 7:15 AM
Modified
Jun 17, 2026, 5:53 AM
Severity
Low
Public date
Jun 7, 2023, 12:00 AM