#!/usr/bin/perl
# Must run on a machine with madison.
#
# To check for un-updated binary kernel packages, also needs grep-dctrl
# and a Sources file for the distribution. Set the location of the Sources
# file in SOURCES_FILE in the environment.
use URI::Escape;
use Getopt::Long;
my $html=0;
my $debug=0;
my $suite="testing";
my $output;
if (! GetOptions(
"html" => \$html,
"debug" => \$debug,
"suite=s" => \$suite,
"output=s", \$output)
|| ! @ARGV) {
die "usage: $0 [--suite suite] [--html] [--output=file] [--debug] advisorylist dtsalist...\n";
}
if (defined $output) {
open (OUT, ">$output.tmp.$$") || die "output.tmp.$$: $!";
}
else {
open (OUT, ">&STDOUT");
}
if ($html) {
print OUT "$suite security issues\n";
if ($suite ne 'testing' && $suite ne 'unstable') {
print OUT <<"EOF";
Warning: This page is the result of running the testing security
check script against the $suite distribution. As data is only gathered for
the testing distribution, results may be innacurate if a package has
changed its name, if a vulnerability affects $suite and not testing, or if a
vulnerability has been fixed in $suite by the $suite security team.
EOF
}
print OUT "\n";
}
my %data;
my %needkernel=qw/2.4.27 0 2.6.11 0/;
my $list_unknown=1; #set to 1 to display kernel images with unknown source version
my $sources=$ENV{SOURCES_FILE};
my $need_rebuild=0;
my @urgencies=("high", "medium", "low", "unknown");
my %colormap=(
high => "#FF0000",
medium => "#FF9999",
low => "#FFFFFF",
unknown => "#FFFF00"
);
my $unprop = my $unprop_all = my $unfixed = my $todos = 0;
sub record {
my ($package, $condition, $item, $urgency)=@_;
if ($html) {
$condition=~s{bug #(\d+)}{bug #$1}g;
$condition=~s{unfixed}{unfixed}g;
$item=~s#((?:CAN|CVE)-\d+-\d+)#$1#g;
}
push @{$data{$package}{$condition}}, {item => $item, urgency => $urgency};
}
die ("No DTSA list specified") if (! length @ARGV[1]);
my $dtsalist = @ARGV[1];
foreach my $list (@ARGV[0]) {
if (-d $list) {
$list="$list/list";
}
open (IN, $list) || die "open $list: $!";
while () {
print STDERR "line: $_" if $debug;
chomp;
if (/^\[/) {
($id)=m/((?:DSA|DTSA|CAN|CVE)-[^\s]+) /;
}
elsif (/^((?:DSA|DTSA|CAN|CVE)-[^\s]+)/) {
$id=$1;
}
elsif (/^\s+[!-]\s+(\S+)\s+(.*?)\s*$/) {
my $package=$1;
my $rest=$2;
my $version;
my $notes;
if ($rest=~/([^\(\s]+)\s+\((.*)\)/) {
$version=$1;
$notes=$2;
}
elsif ($rest=~/\((.*)\)/) {
$version="";
$notes=$1;
}
else {
$version=$rest;
$notes="";
}
my @notes=split(/\s*;\s+/, $notes);
my $urgency="unknown";
foreach my $u (@urgencies) {
if (grep { $_ eq $u } @notes) {
$urgency=$u;
@notes = grep { $_ ne $u } @notes;
last;
}
}
if ($package=~/kernel-source-([0-9.]+)/) {
my $kernversion=$1;
if (exists $needkernel{$kernversion} &&
length $version &&
system("dpkg --compare-versions $needkernel{$kernversion} lt $version") != 0) {
$needkernel{$kernversion}=$version;
}
}
my @maddy;
for (1..5) {
@maddy=`madison -s '$suite' '$package'`;
if ($? & 127 || ($? >> 8 != 0 && $? >> 8 != 1)) {
# good old unrelaible newraff,
# home of our archive..
next;
}
last;
}
if ($? & 127) {
record($package, "[madison segfaulted 5 times in a row.. Medic!]", $id);
}
elsif ($? >> 8 != 0 && $? >> 8 != 1) {
record($package, "[madison exited with ".($? >> 8)."]", $id);
}
if (! @maddy) {
next;
}
if (grep { $_ eq 'unfixed' || $_ eq 'pending' } @notes) {
record($package, '('.join("; ", @notes).')', $id, $urgency);
$unfixed++;
}
else {
foreach my $maddy (@maddy) {
my @fields = split(/\s*\|\s*/, $maddy);
my $havver=$fields[1];
my $arches=$fields[3];
my $dtsacmp=1;
$version=~s/\s+//; # strip whitespace
$arches=~s/\s+$//;
my $cmp=system("dpkg --compare-versions '$havver' '>=' '$version'");
my $dtsaver = `grep "\\- $package" $dtsalist|awk '{print \$3}'`;
chomp $dtsaver;
if (length($dtsaver)) {
my $hdcmp=system("dpkg --compare-versions '$havver' '>=' '$dtsaver'");
if ($hdcmp != 0 && $vdcmp == 0) {
record($package, "have $dtsaver in secure-testing archive, but $havver is in main archive",$id, $urgency);
}
$dtsacmp = 0;
}
if ($cmp != 0 && $dtsacmp !=0) {
if ($html && $suite eq 'testing') {
$havver=''.$havver.'';
}
record($package, "$version needed, have $havver".(@maddy > 1 ? " [$arches]" : ""), $id, $urgency);
$unprop++;
$unprop_all++ unless @maddy > 1;
}
}
}
}
elsif (/\s+TODO/) {
$todos++;
}
}
}
foreach my $package (sort keys %data) {
foreach my $condition (sort keys %{$data{$package}}) {
print OUT "- " if $html;
print OUT "$package $condition for ";
my $items=0;
foreach my $i (sort @{$data{$package}{$condition}}) {
print OUT ", " if $items > 0;
if ($html) {
my $color=$colormap{$i->{urgency}};
print OUT "";
}
print OUT $i->{item};
if ($html) {
print OUT "";
}
$items++;
}
print OUT "\n";
}
}
foreach my $version (sort keys %needkernel) {
my %images;
if ($needkern{$version} eq "0") {
next;
}
my @dctrl;
if (defined $sources && length $sources) {
my $cat=($sources=~/\.gz/) ? "zcat" : "cat";
@dctrl=`$cat $sources | grep-dctrl -F Binary kernel-image-$version -s Package,Build-Depends -`;
}
my $package="";
my $haveversion;
foreach my $line (@dctrl) {
chomp;
if ($line=~/Package:\s*(\S+)/) {
$package=$1;
$haveversion="0";
} elsif ($line=~/Build-Depends/) {
if ($line=~/kernel-tree-$version-([^,\s]+)/) {
$haveversion="$version-$1";
} elsif ($line=~/kernel-source-$version\s+\(>?=\s*([^\s\)]+)\)/) {
$haveversion="$1";
}
} else {
if ($package=~/linux-kernel-di/ || $package eq "") {
next;
}
$images{$package}=$haveversion;
$package="";
}
}
foreach $package (sort keys %images) {
if ($images{$package} eq "0") {
print OUT "
- " if ($html && $list_unknown);
print OUT "$package built from kernel-source-$version $needkernel{$version} needed, current version unknown\n" if $list_unknown;
} elsif (!system("dpkg --compare-versions $needkernel{$version} gt $images{$package}")) {
print OUT "
- " if $html;
print OUT "$package built from kernel-source-$version $needkernel{$version} needed, have $images{$package}\n";
$need_rebuild++;
}
}
}
if ($html) {
print OUT "
\n";
print OUT "
\n";
print OUT "Total holes unfixed: $unfixed
\n";
print OUT "Total holes fixed in unstable but not $suite: $unprop_all";
if ($unprop_all != $unprop) {
print OUT " (+".($unprop - $unprop_all)." on some arches)";
}
print OUT "
\n";
print OUT "Total number of kernel image packages not up to date: $need_rebuild
\n";
print OUT "Number of TODO lines in records: $todos
\n";
print OUT "Maintained by the testing security team
\n";
print OUT "Last update: ".`date`."
\n";
print OUT "\n";
}
close OUT;
if (defined $output) {
rename("$output.tmp.$$", $output) || die "rename: $!";
}