CVE-2025-26596
Publication date 25 February 2025
Last updated 26 February 2025
Ubuntu priority
A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| xorg | 24.10 oracular |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| xorg-hwe-16.04 | 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 16.04 LTS xenial |
Not affected
|
|
| xorg-hwe-18.04 | 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| xorg-server | 24.10 oracular |
Fixed 2:21.1.13-2ubuntu1.2
|
| 24.04 LTS noble |
Fixed 2:21.1.12-1ubuntu1.2
|
|
| 22.04 LTS jammy |
Fixed 2:21.1.4-2ubuntu1.7~22.04.13
|
|
| 20.04 LTS focal |
Fixed 2:1.20.13-1ubuntu1~20.04.19
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| xorg-server-hwe-16.04 | 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 16.04 LTS xenial |
Needs evaluation
|
|
| xorg-server-hwe-18.04 | 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Needs evaluation
|
|
| xwayland | 24.10 oracular |
Fixed 2:24.1.2-1ubuntu0.4
|
| 24.04 LTS noble |
Fixed 2:23.2.6-1ubuntu0.4
|
|
| 22.04 LTS jammy |
Fixed 2:22.1.1-1ubuntu0.17
|
|
| 20.04 LTS focal | Not in release |
Notes
mdeslaur
xorg server is actually the xorg-server package the xorg package only contains docs xwayland package contains parts of xorg-server
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.8 · High
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-7299-1
- X.Org X Server vulnerabilities
- 25 February 2025