Bug 1253267: DOT injection vulnerability in dependency graphs when long bug summaries...

r=dkl

diff --git a/showdependencygraph.cgi b/showdependencygraph.cgi
index e692167de3a3da8e449e3faaba39901ffd1c3a8e..196d8f84ec324bdac65a5fbe173ec80795263e22 100755 (executable)
--- a/showdependencygraph.cgi
+++ b/showdependencygraph.cgi
@@ -199,6 +199,9 @@ foreach my $k (@bug_ids) {
         utf8::encode($summary) if utf8::is_utf8($summary);
         $summary = wrap_comment($summary);
         $summary =~ s/([\\\"])/\\$1/g;
+        # Newlines must be escaped too, to not break the .map file
+        # and to prevent code injection.
+        $summary =~ s/\n/\\n/g;
         push(@params, qq{label="$k\\n$summary"});
     }