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binutils: CVE-2017-8397

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Source: git://sourceware.org/git/binutils-gdb.git
MR: 74114
Type: Security Fix
Disposition: Backport from binutils-2_29
ChangeID: d55e7590c08c4db483bba2fa35df8fbb6283686e
Description:

 Fix a seg-fault when processing a corrupt binary containing reloc(s) with negative addresses.

        PR binutils/21434
        * reloc.c (bfd_perform_relocation): Check for a negative address
        in the reloc.

Affects: <= 2.29

Author: Nick Clifton <nickc@redhat.com>
(From OE-Core rev: 6dd9179c4208c8d13f7e9c784d9993606416ab97)

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
2017-09-04 18:35:19 +05:30
committed by Richard Purdie
parent 70f2d42e84
commit f98a25139e
2 changed files with 51 additions and 0 deletions
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1
meta/recipes-devtools/binutils/binutils-2.27.inc
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@@ -69,6 +69,7 @@ SRC_URI = "\
file://CVE-2017-7304.patch \
file://CVE-2017-8393.patch \
file://CVE-2017-8395.patch \
file://CVE-2017-8397.patch \
"
S = "${WORKDIR}/git"

50
meta/recipes-devtools/binutils/binutils/CVE-2017-8397.patch Normal file
View File

@@ -0,0 +1,50 @@
commit 04b31182bf3f8a1a76e995bdfaaaab4c009b9cb2
Author: Nick Clifton <nickc@redhat.com>
Date: Wed Apr 26 16:30:22 2017 +0100
Fix a seg-fault when processing a corrupt binary containing reloc(s) with negative addresses.
PR binutils/21434
* reloc.c (bfd_perform_relocation): Check for a negative address
in the reloc.
Upstream-Status: Backport
CVE: CVE-2017-8397
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Index: git/bfd/reloc.c
===================================================================
--- git.orig/bfd/reloc.c 2017-09-04 18:06:00.651987605 +0530
+++ git/bfd/reloc.c 2017-09-04 18:06:10.740066291 +0530
@@ -623,7 +623,10 @@
PR 17512: file: c146ab8b, 46dff27f, 38e53ebf. */
octets = reloc_entry->address * bfd_octets_per_byte (abfd);
if (octets + bfd_get_reloc_size (howto)
- > bfd_get_section_limit_octets (abfd, input_section))
+ > bfd_get_section_limit_octets (abfd, input_section)
+ /* Check for an overly large offset which
+ masquerades as a negative value too. */
+ || (octets + bfd_get_reloc_size (howto) < bfd_get_reloc_size (howto)))
return bfd_reloc_outofrange;
/* Work out which section the relocation is targeted at and the
Index: git/bfd/ChangeLog
===================================================================
--- git.orig/bfd/ChangeLog 2017-09-04 18:06:10.684065855 +0530
+++ git/bfd/ChangeLog 2017-09-04 18:08:33.845183050 +0530
@@ -75,6 +75,12 @@
2017-04-26 Nick Clifton <nickc@redhat.com>
+ PR binutils/21434
+ * reloc.c (bfd_perform_relocation): Check for a negative address
+ in the reloc.
+
+2017-04-26 Nick Clifton <nickc@redhat.com>
+
PR binutils/21431
* compress.c (bfd_init_section_compress_status): Check the return
value from bfd_malloc.