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CVE-2023-2861

Date: December 6, 2023

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.

Language: C

Severity Score

Related Resources (10)

https://bugzilla.redhat.com/show_bug.cgi?id=2219266
https://security.netapp.com/advisory/ntap-20240229-0002/
https://github.com/qemu/qemu/commit/f6b0de53fb87ddefed348a39284c8e2f28dc4eda
https://security-tracker.debian.org/tracker/CVE-2023-2861
https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
https://security.netapp.com/advisory/ntap-20240125-0005/
https://nvd.nist.gov/vuln/detail/CVE-2023-2861
https://access.redhat.com/security/cve/CVE-2023-2861
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2023-2861
https://www.mend.io/vulnerability-database/CVE-2023-2861

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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