From ce148a2e0872b708450005cf0b3a944014aae990 Mon Sep 17 00:00:00 2001
From: Dana Jacobsen <dana@acm.org>
Date: Tue, 29 Oct 2013 08:37:48 -0700
Subject: [PATCH 1/2] Fix unsafe decoding in indef case

Bug: https://github.com/gbarr/perl-Convert-ASN1/pull/15
---
 lib/Convert/ASN1/_decode.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Convert/ASN1/_decode.pm b/lib/Convert/ASN1/_decode.pm
index e811e8d..eb2b584 100644
--- a/lib/Convert/ASN1/_decode.pm
+++ b/lib/Convert/ASN1/_decode.pm
@@ -685,6 +685,7 @@ sub _scan_indef {
     if((unpack("C",$tag) & 0x1f) == 0x1f) {
       my $b;
       do {
+	return if $pos >= $end;
 	$tag .= substr($_[0],$pos++,1);
 	$b = ord substr($tag,-1);
       } while($b & 0x80);

From 8125d99e15596fee1b5f904ed74a76bccf54082d Mon Sep 17 00:00:00 2001
From: Dana Jacobsen <dana@acm.org>
Date: Tue, 29 Oct 2013 08:53:09 -0700
Subject: [PATCH 2/2] Add second part of position check

Bug: https://github.com/gbarr/perl-Convert-ASN1/pull/15
---
 lib/Convert/ASN1/_decode.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Convert/ASN1/_decode.pm b/lib/Convert/ASN1/_decode.pm
index eb2b584..67b95aa 100644
--- a/lib/Convert/ASN1/_decode.pm
+++ b/lib/Convert/ASN1/_decode.pm
@@ -679,6 +679,7 @@ sub _scan_indef {
       $pos += 2;
       next;
     }
+    return if $pos >= $end;
 
     my $tag = substr($_[0], $pos++, 1);