X11 library -xrm option buffer overflow

x11-xrm-bo (8828) The risk level is classified as HighHigh Risk


Some Caldera Unix distributions are vulnerable to a buffer overflow in any program that uses the X11 library and accepts the -xrm option to execute arbitrary code. By supplying a long string as an argument with an -xrm option, a local attacker can overflow a buffer and execute arbitrary code on the system.


Gain Privileges


For Caldera OpenUNIX 8.0.0 and UnixWare 7.1.1:
Upgrade to the latest basex package (basex.711b.pkg or later), as listed in Caldera International, Inc. Security Advisory CSSA-2002-SCO.15. See References.


Platforms Affected:

  • SCO Caldera OpenUnix 8.0.0
  • SCO Caldera UnixWare 7.1.1


Apr 11, 2002

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