CVE-2023-45935
Publication date 27 March 2024
Last updated 4 August 2025
Ubuntu priority
Description
Qt 6 through 6.6 was discovered to contain a NULL pointer dereference via the function QXcbConnection::initializeAllAtoms(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| qt6-base | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
4.2 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H |