From: usa@... Date: 2017-10-21T16:18:44+00:00 Subject: [ruby-core:83474] [Ruby trunk Bug#3337] MS-DOS device names are identified as readable_real Issue #3337 has been updated by usa (Usaku NAKAMURA). Assignee changed from usa (Usaku NAKAMURA) to cruby-windows ---------------------------------------- Bug #3337: MS-DOS device names are identified as readable_real https://bugs.ruby-lang.org/issues/3337#change-67474 * Author: hdm (HD Moore) * Status: Assigned * Priority: Normal * Assignee: cruby-windows * Target version: next minor * ruby -v: ruby 1.9.3dev (2010-05-21 trunk 27931) [i386-mingw32] * Backport: 2.3: UNKNOWN, 2.4: UNKNOWN ---------------------------------------- =begin Special MS-DOS filenames return true from a call to File.readable_real? and File.file?. This exposes certain popular projects to a denial of service on the Windows platform. irb(main):007:0> File.readable_real?("AUX") => true Modifying File.file? and File.readable_real? to return false for MS-DOS device names will allow standard tests for static files to avoid MS-DOS names. The regular express below can be used to match against known MS-DOS names and should be inclusive, however a second set of eyes would be great. /\/(CON|PRN|AUX|NUL|COM1|COM2|COM3|COM4|COM5|COM6|COM7|COM8|COM9|LPT1|LPT2|LPT3|LPT4|LPT5|LPT6|LPT7|LPT8|LPT9)([\.\/]|$)/i If you need information on the specific projects affected by this bug, please contact me via email =end -- https://bugs.ruby-lang.org/ Unsubscribe: