A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash.
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:LI:NA:H6.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:HMemory Safety