View source for ASLR

<b>A</b>ddress <b>S</b>pace <b>L</b>ayout <b>R</b>andomization

A [[runtime security]] measure that randomizes the [[memory addresses]] that programs load data and code into.  Usually implemented at the [[Operating System]] level, this will change the location of loaded code at each boot for libraries that are [[nx compliant]]. ASLR Bypass is typically achieved by exploiting a non [[nx compliant]] library in the context of an [[nx compliant]] operating system.

[[ASLR]] is implemented in [[Linux]] Kernel 2.6*, Windows XP SP3 and the more recent versions (Vista, 7, and 8).

[[Category:Countermeasures]]