lighttpd buffer_urldecode function source code disclosure

lighttpd-source-disclosure (19350) The risk level is classified as LowLow Risk


lighttpd could allow a remote attacker to obtain sensitive information, caused by improper handling of control sequences in the buffer_urldecode function. By appending '%00' to the file name in a specially-crafted URL request, a remote attacker could cause the requested file's source code to be disclosed.


Obtain Information


Upgrade to the latest version of lighttpd (1.3.10 or later), available from the lighttpd Download Web page. See References.

— OR —

Apply the fix for 1.3.7, available from the lighttpd Patch Web page. See References.

For Gentoo Linux:
Upgrade to the latest version of lighttpd (1.3.10-r1 or later), as listed in GLSA 200502-21. See References.

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


Platforms Affected:

  • Gentoo Linux
  • lighttpd lighttpd 1.3.7
  • NetBSD NetBSD


Feb 16, 2005

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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