CVE-2023-2861

Qemu: 9pfs: improper access control on special files

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.

Category

6.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory redhat.com
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2023-2861 vdb entry vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219266 patch issue tracking
https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
https://security.netapp.com/advisory/ntap-20240125-0005/
https://security.netapp.com/advisory/ntap-20240229-0002/

Frequently Asked Questions

What is the severity of CVE-2023-2861?
CVE-2023-2861 has been scored as a medium severity vulnerability.
How to fix CVE-2023-2861?
To fix CVE-2023-2861, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-2861 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-2861 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-2861?
CVE-2023-2861 affects .
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