binutls: Security fix for CVE-2017-16826

Affects: <= 2.29.1

Signed-off-by: Armin Kuster <akuster@mvista.com>

diff --git a/meta/recipes-devtools/binutils/binutils-2.29.1.inc b/meta/recipes-devtools/binutils/binutils-2.29.1.inc
index cf131c62a00910dc4e91c7e01af73c210c12469f..73af74c0a83b39db404cfc33cde1c19ead936869 100644 (file)
--- a/meta/recipes-devtools/binutils/binutils-2.29.1.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.29.1.inc
@@ -52,6 +52,7 @@ SRC_URI = "\
      file://CVE-2017-15225.patch \
      file://CVE-2017-15939.patch \
      file://CVE-2017-15996.patch \
+     file://CVE-2017-16826.patch \
 "
 S  = "${WORKDIR}/git"
 

diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-16826.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-16826.patch
new file mode 100644 (file)
index 0000000..bb24ba8
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-16826.patch
@@ -0,0 +1,53 @@
+From a67d66eb97e7613a38ffe6622d837303b3ecd31d Mon Sep 17 00:00:00 2001
+From: Nick Clifton <nickc@redhat.com>
+Date: Wed, 1 Nov 2017 15:21:46 +0000
+Subject: [PATCH] Prevent illegal memory accesses when attempting to read
+ excessively large COFF line number tables.
+
+       PR 22376
+       * coffcode.h (coff_slurp_line_table): Check for an excessively
+       large line number count.
+
+Upstream-Status: Backport 
+Affects: <= 2.29.1
+CVE: CVE-2017-16826
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ bfd/ChangeLog  | 6 ++++++
+ bfd/coffcode.h | 8 ++++++++
+ 2 files changed, 14 insertions(+)
+
+Index: git/bfd/coffcode.h
+===================================================================
+--- git.orig/bfd/coffcode.h
++++ git/bfd/coffcode.h
+@@ -4578,6 +4578,14 @@ coff_slurp_line_table (bfd *abfd, asecti
+ 
+   BFD_ASSERT (asect->lineno == NULL);
+ 
++  if (asect->lineno_count > asect->size)
++    {
++      _bfd_error_handler
++      (_("%B: warning: line number count (%#lx) exceeds section size (%#lx)"),
++       abfd, (unsigned long) asect->lineno_count, (unsigned long) asect->size);
++      return FALSE;
++    }
++
+   amt = ((bfd_size_type) asect->lineno_count + 1) * sizeof (alent);
+   lineno_cache = (alent *) bfd_alloc (abfd, amt);
+   if (lineno_cache == NULL)
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog
++++ git/bfd/ChangeLog
+@@ -1,3 +1,9 @@
++2017-11-01  Nick Clifton  <nickc@redhat.com>
++ 
++       PR 22376
++       * coffcode.h (coff_slurp_line_table): Check for an excessively
++       large line number count.
++
+ 2017-10-28  Alan Modra  <amodra@gmail.com>
+ 
+        PR 22361