XFree86 GLX array index denial of service

xfree86-glx-array-dos (15272) The risk level is classified as MediumMedium Risk


XFree86 is vulnerable to a denial of service, caused by a vulnerability when handling array indexes. By using the GLX extension and Direct Rendering Infrastructure, a local or remote attacker could cause the X Server to crash, and possibly gain root privileges on the system.


Denial of Service


For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest xfree86 package (4.1.0-16woody3 or later), as listed in DSA-443-1. See References.

For Red Hat Linux:
Upgrade to the latest XFree86 package, as listed below. Refer to RHSA-2004:152-04 for more information. See References.

Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1), WS (v. 2.1), and Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor: 4.1.0-58 or later

For other distributions:
Contact your vendor for upgrade or patch information.


  • BID-9701: XFree86 Direct Rendering Infrastructure Buffer Overflow Vulnerabilities
  • CVE-2004-0093: XFree86 4.1.0 allows remote attackers to cause a denial of service and possibly execute arbitrary code via an out-of-bounds array index when using the GLX extension and Direct Rendering Infrastructure (DRI).
  • DSA-443: xfree86 -- several vulnerabilities
  • RHSA-2004-152: XFree86 security update

Platforms Affected:

  • Debian Debian Linux 3.0
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 AW
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • XFree86 XFree86


Feb 19, 2004

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