| Package | Affected versions | Patched versions |
|---|---|---|
| x server | < 21.1.23 | 21.1.23 |
| xwayland | < 24.1.12 | 24.1.12 |
An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.
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