Description
A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CVSS 7.8EPSS 0.154%Risque 0.79
Voir la source- Publication
- 2026-06-05 12:16:39
- Versions concernées
- unknown
- Type
- Core software
- Dernière modification
- 2026-08-05 13:23:33
- Vecteur
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Systèmes d’exploitation
- Linux