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binutls: Secuirty fix for CVE-2017-9756 

Affects: <= 2.28

(From OE-Core rev: 59956de9ffd18d65c41697772e2b95da982cc803)

Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Armin Kuster 2017-11-26 16:32:47 -08:00 committed by Richard Purdie
parent 3f098a0f6e
commit 4aff74cf1e
2 changed files with 51 additions and 0 deletions
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1
meta/recipes-devtools/binutils/binutils-2.28.inc
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@ -66,6 +66,7 @@ SRC_URI = "\
file://CVE-2017-9752.patch \
file://CVE-2017-9753.patch \
file://CVE-2017-9755.patch \
file://CVE-2017-9756.patch \
"
S = "${WORKDIR}/git"

50
meta/recipes-devtools/binutils/binutils/CVE-2017-9756.patch Normal file
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@ -0,0 +1,50 @@
From cd3ea7c69acc5045eb28f9bf80d923116e15e4f5 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Thu, 15 Jun 2017 13:26:54 +0100
Subject: [PATCH] Prevent address violation problem when disassembling corrupt
aarch64 binary.
PR binutils/21595
* aarch64-dis.c (aarch64_ext_ldst_reglist): Check for an out of
range value.
Upstream-Status: Backport
CVE: CVE-2017-9756
Signed-off-by: Armin Kuster <akuster@mvista.com>
---
opcodes/ChangeLog | 6 ++++++
opcodes/aarch64-dis.c | 3 +++
2 files changed, 9 insertions(+)
Index: git/opcodes/ChangeLog
===================================================================
--- git.orig/opcodes/ChangeLog
+++ git/opcodes/ChangeLog
@@ -6,6 +6,12 @@
2017-06-15 Nick Clifton <nickc@redhat.com>
+ PR binutils/21595
+ * aarch64-dis.c (aarch64_ext_ldst_reglist): Check for an out of
+ range value.
+
+2017-06-15 Nick Clifton <nickc@redhat.com>
+
PR binutils/21588
* rl78-decode.opc (OP_BUF_LEN): Define.
(GETBYTE): Check for the index exceeding OP_BUF_LEN.
Index: git/opcodes/aarch64-dis.c
===================================================================
--- git.orig/opcodes/aarch64-dis.c
+++ git/opcodes/aarch64-dis.c
@@ -409,6 +409,9 @@ aarch64_ext_ldst_reglist (const aarch64_
info->reglist.first_regno = extract_field (FLD_Rt, code, 0);
/* opcode */
value = extract_field (FLD_opcode, code, 0);
+ /* PR 21595: Check for a bogus value. */
+ if (value >= ARRAY_SIZE (data))
+ return 0;
if (expected_num != data[value].num_elements || data[value].is_reserved)
return 0;
info->reglist.num_regs = data[value].num_regs;