File CVE-2018-19058.patch of Package poppler.27868
From 6912e06d9ab19ba28991b5cab3319d61d856bd6d Mon Sep 17 00:00:00 2001
From: Adam Reichold <adam.reichold@t-online.de>
Date: Tue, 6 Nov 2018 09:00:02 +0100
Subject: [PATCH] Check for stream before calling stream methods when saving an
embedded file.
Closes #659
---
poppler/FileSpec.cc | 3 +++
1 file changed, 3 insertions(+)
Index: poppler-0.62.0/poppler/FileSpec.cc
===================================================================
--- poppler-0.62.0.orig/poppler/FileSpec.cc 2017-12-03 19:25:06.000000000 +0000
+++ poppler-0.62.0/poppler/FileSpec.cc 2019-03-20 11:20:50.360442049 +0000
@@ -92,6 +92,9 @@ GBool EmbFile::save(const char *path) {
GBool EmbFile::save2(FILE *f) {
int c;
+ if (unlikely(!m_objStr.isStream()))
+ return false;
+
m_objStr.streamReset();
while ((c = m_objStr.streamGetChar()) != EOF) {
fputc(c, f);