CVE-2022-3165
Published: 17 October 2022
An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.
Notes
| Author | Note |
|---|---|
| rodrigo-zaiden | from the patch being proposed in qemu-devel list it was introduced in v6.1.0-rc0 with commit https://gitlab.com/qemu-project/qemu/-/commit/0bf41cab93e5c72dcda717abd625698b59d9ba3e |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(code not present)
|
| jammy |
Released
(1:6.2+dfsg-2ubuntu6.6)
|
|
| kinetic |
Released
(1:7.0+dfsg-7ubuntu2.1)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
| upstream |
Needs triage
|
|
| bionic |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://gitlab.com/qemu-project/qemu/-/commit/d307040b18bfcb1393b910f1bae753d5c12a4dc7 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |