CVE-2023-2861

    Dashboard / Vulnerabilities / CVE-2023-2861

    CVE-2023-2861

    Published: 6 Dec 2023Last Modified: 12 Aug 2026

    Summary: Qemu: 9pfs: improper access control on special files

    Details: 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.

    References: https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html, https://access.redhat.com/security/cve/CVE-2023-2861, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2861.json, https://nvd.nist.gov/vuln/detail/CVE-2023-2861, https://security.netapp.com/advisory/ntap-20240125-0005/, https://security.netapp.com/advisory/ntap-20240229-0002/, https://bugzilla.redhat.com/show_bug.cgi?id=2219266, https://gitlab.com/qemu-project/qemu

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -7e5a8bb22368b3555644cb2debd3df24592f3a21

    Affected versions

    v8.1.0-rc4
    v8.1.0-rc3
    v8.1.0-rc2
    v8.1.0-rc1
    v8.1.0-rc0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-2861 | CVE-DB