CVE-2023-2861
Published: 30 June 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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu
Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Released
(1:4.2-3ubuntu6.28)
|
|
| jammy |
Released
(1:6.2+dfsg-2ubuntu6.16)
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Released
(1:7.2+dfsg-5ubuntu2.4)
|
|
| mantic |
Not vulnerable
(1:8.0.4+dfsg-1ubuntu3)
|
|
| noble |
Not vulnerable
(1:8.0.4+dfsg-1ubuntu5)
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
Patches:
upstream: https://gitlab.com/qemu-project/qemu/-/commit/f6b0de53fb87ddefed348a39284c8e2f28dc4eda |
||
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 |