binutls: Security fix CVE-2017-14933

Affects: <= 2.29.1

(From OE-Core rev: 16cdbc7504cc14547bb99ed742484ae9e658ec6e)

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 162 insertions, 0 deletions

diff --git a/meta/recipes-devtools/binutils/binutils-2.29.1.inc b/meta/recipes-devtools/binutils/binutils-2.29.1.inc
index 76c5c439cb..78b5249ee1 100644
--- a/meta/recipes-devtools/binutils/binutils-2.29.1.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.29.1.inc
@@ -38,6 +38,8 @@ SRC_URI = "\
      file://CVE-2017-17124.patch \
      file://CVE-2017-14930.patch \
      file://CVE-2017-14932.patch \
+     file://CVE-2017-14933_p1.patch \
+     file://CVE-2017-14933_p2.patch \
 "
 S  = "${WORKDIR}/git"
 
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-14933_p1.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-14933_p1.patch
new file mode 100644
index 0000000000..9df8138401
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-14933_p1.patch
@@ -0,0 +1,58 @@
+From 30d0157a2ad64e64e5ff9fcc0dbe78a3e682f573 Mon Sep 17 00:00:00 2001
+From: Nick Clifton <nickc@redhat.com>
+Date: Tue, 26 Sep 2017 14:37:47 +0100
+Subject: [PATCH] Avoid needless resource usage when processing a corrupt DWARF
+ directory or file name table.
+
+        PR 22210
+        * dwarf2.c (read_formatted_entries): Fail early if we know that
+        the loop parsing data entries will overflow the end of the
+        section.
+
+Upstream-Status: Backport
+Affects: <= 2.29.1
+CVE: CVE-2017-14933 #1
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ bfd/ChangeLog |  7 +++++++
+ bfd/dwarf2.c  | 10 ++++++++++
+ 2 files changed, 17 insertions(+)
+
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog
++++ git/bfd/ChangeLog
+@@ -1,3 +1,10 @@
++2017-09-26  Nick Clifton  <nickc@redhat.com>
++
++       PR 22210
++       * dwarf2.c (read_formatted_entries): Fail early if we know that
++       the loop parsing data entries will overflow the end of the
++       section.
++
+ 2017-09-26  Alan Modra  <amodra@gmail.com>
+ 
+        PR 22204
+Index: git/bfd/dwarf2.c
+===================================================================
+--- git.orig/bfd/dwarf2.c
++++ git/bfd/dwarf2.c
+@@ -1933,6 +1933,17 @@ read_formatted_entries (struct comp_unit
+ 
+   data_count = _bfd_safe_read_leb128 (abfd, buf, &bytes_read, FALSE, buf_end);
+   buf += bytes_read;
++
++  /* PR 22210.  Paranoia check.  Don't bother running the loop
++     if we know that we are going to run out of buffer.  */
++  if (data_count > (bfd_vma) (buf_end - buf))
++    {
++      _bfd_error_handler (_("Dwarf Error: data count (%Lx) larger than buffer size."),
++                         data_count);
++      bfd_set_error (bfd_error_bad_value);
++      return FALSE;
++    }
++
+   for (datai = 0; datai < data_count; datai++)
+     {
+       bfd_byte *format = format_header_data;
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-14933_p2.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-14933_p2.patch
new file mode 100644
index 0000000000..607d92f3d4
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-14933_p2.patch
@@ -0,0 +1,102 @@
+From 33e0a9a056bd23e923b929a4f2ab049ade0b1c32 Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Tue, 26 Sep 2017 23:20:06 +0930
+Subject: [PATCH] Tidy reading data in read_formatted_entries
+
+Using read_attribute_value accomplishes two things: It checks for
+unexpected formats, and ensures the buffer pointer always increments.
+
+        PR 22210
+        * dwarf2.c (read_formatted_entries): Use read_attribute_value to
+        read data.
+
+Upstream-Status: Backport
+Affects: <= 2.29.1
+CVE: CVE-2017-14933 #2
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ bfd/ChangeLog |  6 ++++++
+ bfd/dwarf2.c  | 37 +++++++------------------------------
+ 2 files changed, 13 insertions(+), 30 deletions(-)
+
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog
++++ git/bfd/ChangeLog
+@@ -1,3 +1,9 @@
++2017-09-26  Alan Modra  <amodra@gmail.com>
++
++       PR 22210
++       * dwarf2.c (read_formatted_entries): Use read_attribute_value to
++       read data.
++
+ 2017-09-26  Nick Clifton  <nickc@redhat.com>
+ 
+        PR 22210
+Index: git/bfd/dwarf2.c
+===================================================================
+--- git.orig/bfd/dwarf2.c
++++ git/bfd/dwarf2.c
+@@ -1955,6 +1955,7 @@ read_formatted_entries (struct comp_unit
+          char *string_trash;
+          char **stringp = &string_trash;
+          unsigned int uint_trash, *uintp = &uint_trash;
++         struct attribute attr;
+ 
+          content_type = _bfd_safe_read_leb128 (abfd, format, &bytes_read,
+                                                FALSE, buf_end);
+@@ -1986,47 +1987,23 @@ read_formatted_entries (struct comp_unit
+          form = _bfd_safe_read_leb128 (abfd, format, &bytes_read, FALSE,
+                                        buf_end);
+          format += bytes_read;
++
++         buf = read_attribute_value (&attr, form, 0, unit, buf, buf_end);
++         if (buf == NULL)
++           return FALSE;
+          switch (form)
+            {
+            case DW_FORM_string:
+-             *stringp = read_string (abfd, buf, buf_end, &bytes_read);
+-             buf += bytes_read;
+-             break;
+-
+            case DW_FORM_line_strp:
+-             *stringp = read_indirect_line_string (unit, buf, buf_end, &bytes_read);
+-             buf += bytes_read;
++             *stringp = attr.u.str;
+              break;
+ 
+            case DW_FORM_data1:
+-             *uintp = read_1_byte (abfd, buf, buf_end);
+-             buf += 1;
+-             break;
+-
+            case DW_FORM_data2:
+-             *uintp = read_2_bytes (abfd, buf, buf_end);
+-             buf += 2;
+-             break;
+-
+            case DW_FORM_data4:
+-             *uintp = read_4_bytes (abfd, buf, buf_end);
+-             buf += 4;
+-             break;
+-
+            case DW_FORM_data8:
+-             *uintp = read_8_bytes (abfd, buf, buf_end);
+-             buf += 8;
+-             break;
+-
+            case DW_FORM_udata:
+-             *uintp = _bfd_safe_read_leb128 (abfd, buf, &bytes_read, FALSE,
+-                                             buf_end);
+-             buf += bytes_read;
+-             break;
+-
+-           case DW_FORM_block:
+-             /* It is valid only for DW_LNCT_timestamp which is ignored by
+-                current GDB.  */
++             *uintp = attr.u.val;
+              break;
+            }
+        }