CVE-2023-2861 MEDIUM

CVE-2023-2861: Qemu: 9pfs: improper access control on special files

Weakness CWE-284
Published December 6, 2023
Last update August 2, 2024
View on NVD All CVEs

CVSS base score

6.0/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 6, 2023 CVE published
August 2, 2024 Record updated