The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6.6 and XFree86 prior to 3.3.3 calls the SendErrToClient function with a mask value instead of a pointer, which allows local users to cause a denial of service (memory corruption and crash) or obtain potentially sensitive information from memory via a SetEventMask request that triggers an invalid pointer dereference.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
x x.org x11 6.0 |
||
x x.org x11 6.4 |
||
x x.org x11 6.5.1 |
||
x x.org x11 6.1 |
||
x x.org x11 6.3 |
||
x x.org x11 6.6 |
||
xfree86 xfree86 |
Vulmon