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binutils: CVE-2017-9954

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Source: binutils-gdb.git
MR: 73906
Type: Security Fix
Disposition: Backport from binutils-2_29
ChangeID: 13858130a02bbe84744fd33ecbf2bbbd2360c09c
Description:

 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.

Affects: <= 2.28
Author: Nick Clifton <nickc@redhat.com>
(From OE-Core rev: 162fce9416dcde1a0b7edfbf772fa6e6e18c46a4)

Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Reviewed-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Thiruvadi Rajaraman
2017-09-21 19:42:19 +05:30
committed by Richard Purdie
parent 525986d6c6
commit ab884ff9a7
2 changed files with 59 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-devtools/binutils/binutils-2.27.inc
+1
View File
@@ -90,6 +90,7 @@ SRC_URI = "\
file://CVE-2017-9755_2.patch \
file://CVE-2017-9756.patch \
file://CVE-2017-9745.patch \
file://CVE-2017-9954.patch \
"
S = "${WORKDIR}/git"
meta/recipes-devtools/binutils/binutils/CVE-2017-9954.patch
+58
View File
@@ -0,0 +1,58 @@
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