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commit 04e15b4a9462cb1ae819e878a6009829aab8020b
Author: Nick Clifton <nickc@redhat.com>
Date: Mon Jun 26 15:46:34 2017 +0100
Fix address violation parsing a corrupt texhex format file.
PR binutils/21670
* tekhex.c (getvalue): Check for the source pointer exceeding the
end pointer before the first byte is read.
Upstream-Status: Backport
CVE: CVE-2017-9954
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Index: git/bfd/tekhex.c
===================================================================
--- git.orig/bfd/tekhex.c 2017-09-21 16:19:42.570877476 +0530
+++ git/bfd/tekhex.c 2017-09-21 16:20:06.878964516 +0530
@@ -273,6 +273,9 @@
bfd_vma value = 0;
unsigned int len;
+ if (src >= endp)
+ return FALSE;
+
if (!ISHEX (*src))
return FALSE;
@@ -514,9 +517,10 @@
/* To the front of the file. */
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
return FALSE;
+
while (! is_eof)
{
- char src[MAXCHUNK];
+ static char src[MAXCHUNK];
char type;
/* Find first '%'. */
Index: git/bfd/ChangeLog
===================================================================
--- git.orig/bfd/ChangeLog 2017-09-21 16:20:06.822964309 +0530
+++ git/bfd/ChangeLog 2017-09-21 16:22:29.383577439 +0530
@@ -55,6 +55,12 @@
correct magic bytes at the start, set the error to wrong format
and clear the format selector before returning NULL.
+2017-06-26 Nick Clifton <nickc@redhat.com>
+
+ PR binutils/21670
+ * tekhex.c (getvalue): Check for the source pointer exceeding the
+ end pointer before the first byte is read.
+
2017-06-21 Nick Clifton <nickc@redhat.com>
PR binutils/21637
|
