CVE-2023-6816
CRITICAL
INFO
Priority: 0.21
BB Relevance:
80/100
Published: 2024-01-18
Modified: 2026-11-04
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.
Weakness Classification (1)
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| debian | debian_linux | 10.0 |
| fedoraproject | fedora | 39 |
| redhat | enterprise_linux_desktop | 7.0 |
| redhat | enterprise_linux_server | 7.0 |
| redhat | enterprise_linux_workstation | 7.0 |
| x.org | x_server | < 21.1.11 |
| x.org | xwayland | < 23.2.4 |
References & Advisories (24)
Third Party Advisory
Third Party Advisory
Issue Tracking