Bugtraq mailing list archives
Re: Intel Pentium Bug
From: root () SAFFRONCS COM (Jason Parsons)
Date: Sun, 9 Nov 1997 19:39:10 -0500
Re the F0 0F C7 C8 Pentuim bug: I just wanted ot repost this from the Linux-security list. Thought it might be helpful to some here. This was posted to Linux-security by Sam Trenholme <set () reality samiam org>. #!/usr/bin/perl # There is no known software fix to the F0 0F C7 C8 bug at this time # usage: finddeath dir # where dir is the directory you recursively look at all programs in # for instances of the F0 0F C7 C8 sequence # This script will search for programs with this sequence, which will # help sysadmins take appropriate action against those running such # programs # This script is written (but has not been tested) in Perl4, to # insure maximum compatibility sub findit { local($dir,$file,@files,$data) = @_; undef $/; if(!opendir(DIR,$dir)) { print STDERR "Can not open $dir: $!\n"; return 0; } @files=readdir(DIR); foreach $file (@files) { if($file ne '.' && $file ne '..') { if( -f "$dir/$file" && open(FILE,"< $dir/$file")) { $data=<FILE>; if($data =~ /\xf0\x0f\xc7\xc8/) { print "$dir/$file contains F0 0F C7 C8\n"; } } elsif( -d "$dir/$file") { &findit("$dir/$file"); } } } } $dir = shift || '/home'; &findit($dir);
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