binutils: Security Fix CVE-2017-9039

Source: binutils-gbd.git
MR: 72742
Type: Security Fix
Disposition: Backport from git://sourceware.org/binutils-gdb.git
ChangeID: 280f36838862ea67fdcd65b162c1a4835cf924dc
Description:

Affects: <= 2.28

Signed-off-by: Armin Kuster <akuster@mvista.com>
Reviewed-by  Jeremy Puhlman <jpuhlman@mvista.com>

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

diff --git a/meta/recipes-devtools/binutils/binutils-2.27.inc b/meta/recipes-devtools/binutils/binutils-2.27.inc
index a117323282fd77f2b73446a656ea49823c4b1c99..eefb2e703198eb99dd4045d6b1134d2eab1de112 100644 (file)
--- a/meta/recipes-devtools/binutils/binutils-2.27.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.27.inc
@@ -47,6 +47,8 @@ SRC_URI = "\
      file://CVE-2017-7210.patch \
      file://CVE-2017-7614.patch \
      file://CVE-2017-9038.patch \
+     file://CVE-2017-9039.patch \
+     file://CVE-2017-9039_1.patch \
 "
 S  = "${WORKDIR}/git"
 

diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-9039.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-9039.patch
new file mode 100644 (file)
index 0000000..41f2b6e
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-9039.patch
@@ -0,0 +1,72 @@
+From 75ec1fdbb797a389e4fe4aaf2e15358a070dcc19 Mon Sep 17 00:00:00 2001
+From: Nick Clifton <nickc@redhat.com>
+Date: Mon, 3 Apr 2017 11:13:21 +0100
+Subject: [PATCH] Fix runtime seg-fault in readelf when parsing a corrupt MIPS
+ binary.
+
+       PR binutils/21344
+       * readelf.c (process_mips_specific): Check for an out of range GOT
+       entry before reading the module pointer.
+
+Upstream-Status: Backport
+CVE: CVE-2017-9039 supporting patch
+VER: <= 2.28
+Signed-off-by: Armin kuster <akuster@mvista.com>
+
+---
+ binutils/ChangeLog |  6 ++++++
+ binutils/readelf.c | 26 ++++++++++++++++++--------
+ 2 files changed, 24 insertions(+), 8 deletions(-)
+
+Index: git/binutils/readelf.c
+===================================================================
+--- git.orig/binutils/readelf.c
++++ git/binutils/readelf.c
+@@ -14987,14 +14987,24 @@ process_mips_specific (FILE * file)
+       printf (_(" Lazy resolver\n"));
+       if (ent == (bfd_vma) -1)
+       goto got_print_fail;
+-      if (data
+-        && (byte_get (data + ent - pltgot, addr_size)
+-            >> (addr_size * 8 - 1)) != 0)
++
++      if (data)
+       {
+-        ent = print_mips_got_entry (data, pltgot, ent, data_end);
+-        printf (_(" Module pointer (GNU extension)\n"));
+-        if (ent == (bfd_vma) -1)
+-          goto got_print_fail;
++        /* PR 21344 */
++        if (data + ent - pltgot > data_end - addr_size)
++          {
++            error (_("Invalid got entry - %#lx - overflows GOT table\n"), ent);
++            goto got_print_fail;
++          }
++        
++        if (byte_get (data + ent - pltgot, addr_size)
++            >> (addr_size * 8 - 1) != 0)
++          {
++            ent = print_mips_got_entry (data, pltgot, ent, data_end);
++            printf (_(" Module pointer (GNU extension)\n"));
++            if (ent == (bfd_vma) -1)
++              goto got_print_fail;
++          }
+       }
+       printf ("\n");
+ 
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog
++++ git/bfd/ChangeLog
+@@ -1,5 +1,11 @@
+ 2017-04-03  Nick Clifton  <nickc@redhat.com>
+ 
++       PR binutils/21344
++       * readelf.c (process_mips_specific): Check for an out of range GOT
++       entry before reading the module pointer.
++
++2017-04-03  Nick Clifton  <nickc@redhat.com>
++
+       PR binutils/21343
+       * readelf.c (get_unwind_section_word): Fix snafu checking for
+       invalid word offsets in ARM unwind information.

diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch
new file mode 100644 (file)
index 0000000..ee827ee
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch
@@ -0,0 +1,56 @@
+From 82156ab704b08b124d319c0decdbd48b3ca2dac5 Mon Sep 17 00:00:00 2001
+From: Nick Clifton <nickc@redhat.com>
+Date: Mon, 3 Apr 2017 12:14:06 +0100
+Subject: [PATCH] readelf: Fix overlarge memory allocation when reading a
+ binary with an excessive number of program headers.
+
+       PR binutils/21345
+       * readelf.c (get_program_headers): Check for there being too many
+       program headers before attempting to allocate space for them.
+
+Upstream-Status: Backport
+CVE: CVE-2017-9039
+VER: <= 2.28
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ binutils/ChangeLog |  6 ++++++
+ binutils/readelf.c | 17 ++++++++++++++---
+ 2 files changed, 20 insertions(+), 3 deletions(-)
+
+Index: git/binutils/readelf.c
+===================================================================
+--- git.orig/binutils/readelf.c
++++ git/binutils/readelf.c
+@@ -4705,9 +4705,19 @@ get_program_headers (FILE * file)
+   if (program_headers != NULL)
+     return 1;
+ 
+-  phdrs = (Elf_Internal_Phdr *) cmalloc (elf_header.e_phnum,
+-                                         sizeof (Elf_Internal_Phdr));
++  /* Be kind to memory checkers by looking for
++     e_phnum values which we know must be invalid.  */
++  if (elf_header.e_phnum
++      * (is_32bit_elf ? sizeof (Elf32_External_Phdr) : sizeof (Elf64_External_Phdr))
++      >= current_file_size)
++    {
++      error (_("Too many program headers - %#x - the file is not that big\n"),
++           elf_header.e_phnum);
++      return FALSE;
++    }
+ 
++  phdrs = (Elf_Internal_Phdr *) cmalloc (elf_header.e_phnum,
++                                       sizeof (Elf_Internal_Phdr));
+   if (phdrs == NULL)
+     {
+       error (_("Out of memory reading %u program headers\n"),
+@@ -14993,7 +15003,8 @@ process_mips_specific (FILE * file)
+         /* PR 21344 */
+         if (data + ent - pltgot > data_end - addr_size)
+           {
+-            error (_("Invalid got entry - %#lx - overflows GOT table\n"), ent);
++            error (_("Invalid got entry - %#lx - overflows GOT table\n"),
++                   (long) ent);
+             goto got_print_fail;
+           }
+