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Test your applicationsThere is no fixed version for RHEL:7
xorg-x11-server-source
.
Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-source
package and not the xorg-x11-server-source
package as distributed by RHEL
.
See How to fix?
for RHEL:7
relevant fixed versions and status.
A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.