X.Org X Server CVE-2017-10971 Stack Buffer Overflow Vulnerability

Bugtraq ID:	99546
Class:	Input Validation Error
CVE:	CVE-2017-10971
Remote:	Yes
Local:	No
Published:	Jul 06 2017 12:00AM
Updated:	Jul 06 2017 12:00AM
Credit:	Marcus Meissner
Vulnerable:	X.org X Server 0 Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64
Not Vulnerable:

X.Org X Server CVE-2017-10971 Stack Buffer Overflow Vulnerability

X.Org X Server is prone to a stack-based buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied data.

A remote attacker may exploit this issue to execute arbitrary code in the context of the affected application. Failed attempts will likely cause a denial-of-service condition.

X.Org X Server CVE-2017-10971 Stack Buffer Overflow Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

X.Org X Server CVE-2017-10971 Stack Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

X.Org X Server CVE-2017-10971 Stack Buffer Overflow Vulnerability

References:

• dix: Disallow GenericEvent in SendEvent request. (Freedesktop)
  
• Xi: Do not try to swap GenericEvent. (Freedesktop)
  
• Xi: Verify all events in ProcXSendExtensionEvent. (Freedesktop)
  
• Bug 1035283 - xorg-x11-server: various overflows in event processor (Suse)