Heap-based buffer overread in xmlNextCharCVE-2016-1762

For https://bugzilla.gnome.org/show_bug.cgi?id=759671

when the end of the internal subset isn't properly detected
xmlParseInternalSubset should just return instead of trying
to process input further.

1 files changed, 1 insertions, 0 deletions

diff --git a/parser.c b/parser.c
index c5741e3b..0677030c 100644
--- a/parser.c
+++ b/parser.c
@@ -8468,6 +8468,7 @@ xmlParseInternalSubset(xmlParserCtxtPtr ctxt) {
      */
     if (RAW != '>') {
 	xmlFatalErr(ctxt, XML_ERR_DOCTYPE_NOT_FINISHED, NULL);
+	return;
     }
     NEXT;
 }