[oe-commits] [openembedded-core] 34/65: binutls: Security fix for CVE-2017-16830

[git at git.openembedded.org]

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rpurdie pushed a commit to branch rocko
in repository openembedded-core.

commit 29c6da2092599145e5a4f00ccc6029f31ec724da
Author: Armin Kuster <akuster at mvista.com>
AuthorDate: Tue Aug 7 16:06:49 2018 -0700

    binutls: Security fix for CVE-2017-16830
    
    Affects: <= 2.29.1
    
    Signed-off-by: Armin Kuster <akuster at mvista.com>
---
 meta/recipes-devtools/binutils/binutils-2.29.1.inc |  1 +
 .../binutils/binutils/CVE-2017-16830.patch         | 91 ++++++++++++++++++++++
 2 files changed, 92 insertions(+)

diff --git a/meta/recipes-devtools/binutils/binutils-2.29.1.inc b/meta/recipes-devtools/binutils/binutils-2.29.1.inc
index 7966cc3..4191482 100644
--- a/meta/recipes-devtools/binutils/binutils-2.29.1.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.29.1.inc
@@ -57,6 +57,7 @@ SRC_URI = "\
      file://CVE-2017-16828_p1.patch \
      file://CVE-2017-16828_p2.patch \
      file://CVE-2017-16829.patch \
+     file://CVE-2017-16830.patch \
 "
 S  = "${WORKDIR}/git"
 
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-16830.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-16830.patch
new file mode 100644
index 0000000..1382c8e
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-16830.patch
@@ -0,0 +1,91 @@
+From 6ab2c4ed51f9c4243691755e1b1d2149c6a426f4 Mon Sep 17 00:00:00 2001
+From: Mingi Cho <mgcho.minic at gmail.com>
+Date: Thu, 2 Nov 2017 17:01:08 +0000
+Subject: [PATCH] Work around integer overflows when readelf is checking for
+ corrupt ELF notes when run on a 32-bit host.
+
+	PR 22384
+	* readelf.c (print_gnu_property_note): Improve overflow checks so
+	that they will work on a 32-bit host.
+
+Upstream-Status: Backport
+Affects: <= 2.29.1
+CVE: CVE-2017-16830
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ binutils/ChangeLog |  6 ++++++
+ binutils/readelf.c | 33 +++++++++++++++++----------------
+ 2 files changed, 23 insertions(+), 16 deletions(-)
+
+Index: git/binutils/readelf.c
+===================================================================
+--- git.orig/binutils/readelf.c
++++ git/binutils/readelf.c
+@@ -16431,15 +16431,24 @@ print_gnu_property_note (Elf_Internal_No
+       return;
+     }
+ 
+-  while (1)
++  while (ptr < ptr_end)
+     {
+       unsigned int j;
+-      unsigned int type = byte_get (ptr, 4);
+-      unsigned int datasz = byte_get (ptr + 4, 4);
++      unsigned int type;
++      unsigned int datasz;
++
++      if ((size_t) (ptr_end - ptr) < 8)
++	{
++	  printf (_("<corrupt descsz: %#lx>\n"), pnote->descsz);
++	  break;
++	}
++
++      type = byte_get (ptr, 4);
++      datasz = byte_get (ptr + 4, 4);
+ 
+       ptr += 8;
+ 
+-      if ((ptr + datasz) > ptr_end)
++      if (datasz > (size_t) (ptr_end - ptr))
+ 	{
+ 	  printf (_("<corrupt type (%#x) datasz: %#x>\n"),
+ 		  type, datasz);
+@@ -16520,19 +16529,11 @@ next:
+       ptr += ((datasz + (size - 1)) & ~ (size - 1));
+       if (ptr == ptr_end)
+ 	break;
+-      else
+-	{
+-	  if (do_wide)
+-	    printf (", ");
+-	  else
+-	    printf ("\n\t");
+-	}
+ 
+-      if (ptr > (ptr_end - 8))
+-	{
+-	  printf (_("<corrupt descsz: %#lx>\n"), pnote->descsz);
+-	  break;
+-	}
++      if (do_wide)
++	printf (", ");
++      else
++	printf ("\n\t");
+     }
+ 
+   printf ("\n");
+Index: git/binutils/ChangeLog
+===================================================================
+--- git.orig/binutils/ChangeLog
++++ git/binutils/ChangeLog
+@@ -1,3 +1,9 @@
++2017-11-02  Mingi Cho  <mgcho.minic at gmail.com>
++
++       PR 22384
++       * readelf.c (print_gnu_property_note): Improve overflow checks so
++       that they will work on a 32-bit host.
++
+ 2017-10-05  Alan Modra  <amodra at gmail.com>
+ 
+        PR 22239

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