CVE-2023-2861
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | Stream | qemu | Not affected (8.0.4-r0) |
References
- https://access.redhat.com/security/cve/CVE-2023-2861
- https://bugzilla.redhat.com/show_bug.cgi?id=2219266
- https://gitlab.com/qemu-project/qemu/-/commit/f6b0de53fb87ddefed348a39284c8e2f28dc4eda
- 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/