Descripción
A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CVSS 7.8EPSS 0.154%Riesgo 0.79
Ver fuente- Publicación
- 2026-06-05 12:16:39
- Versiones afectadas
- unknown
- Tipo
- Core software
- Última modificación
- 2026-08-05 13:23:32
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Sistemas operativos
- Linux