Check return code of getChar(), abort reading on error.
Bug #104502
diff --git a/poppler/PDFDoc.cc b/poppler/PDFDoc.cc
index a259f4b..8fca202 100644
--- a/poppler/PDFDoc.cc
+++ b/poppler/PDFDoc.cc
@@ -37,6 +37,7 @@
// Copyright (C) 2016 Jakub Alba <jakubalba@gmail.com>
// Copyright (C) 2017 Jean Ghali <jghali@libertysurf.fr>
// Copyright (C) 2017 Fredrik Fornwall <fredrik@fornwall.net>
+// Copyright (C) 2018 Ben Timby <btimby@gmail.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
@@ -401,11 +402,16 @@
char *p;
char *tokptr;
int i;
+ int c;
pdfMajorVersion = 0;
pdfMinorVersion = 0;
for (i = 0; i < headerSearchSize; ++i) {
- hdrBuf[i] = str->getChar();
+ if ((c = str->getChar()) == EOF) {
+ error(errSyntaxWarning, -1, "EOF while reading header (continuing anyway)");
+ return;
+ }
+ hdrBuf[i] = c;
}
hdrBuf[headerSearchSize] = '\0';
for (i = 0; i < headerSearchSize - 5; ++i) {
