[oe-commits] [openembedded-core] 17/51: binutils: CVE-2017-7303

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commit ef1a98976886560396a514458edb80a21f09b808
Author: Thiruvadi Rajaraman <trajaraman at mvista.com>
AuthorDate: Mon Sep 4 16:44:08 2017 +0530

    binutils: CVE-2017-7303
    
    Source: git://sourceware.org/git/binutils-gdb.git
    MR: 74205
    Type: Security Fix
    Disposition: Backport from binutils-2_28-branch
    ChangeID: db5bfb63661d39846c3b03353e1383c621759d48
    Description:
    
        Fix seg-fault attempting to strip a corrupt binary.
    
            PR binutils/20922
            * elf.c (find_link): Check for null headers before attempting to
            match them.
    
    Affects: <= 2.28
    Author: Nick Clifton <nickc at redhat.com>
    Signed-off-by: Thiruvadi Rajaraman <trajaraman at mvista.com>
    Reviewed-by: Armin Kuster <akuster at mvista.com>
    Signed-off-by: Armin Kuster <akuster at mvista.com>
    Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
 meta/recipes-devtools/binutils/binutils-2.27.inc   |  1 +
 .../binutils/binutils/CVE-2017-7303.patch          | 55 ++++++++++++++++++++++
 2 files changed, 56 insertions(+)

diff --git a/meta/recipes-devtools/binutils/binutils-2.27.inc b/meta/recipes-devtools/binutils/binutils-2.27.inc
index 936cdc3..b60aa8a 100644
--- a/meta/recipes-devtools/binutils/binutils-2.27.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.27.inc
@@ -65,6 +65,7 @@ SRC_URI = "\
      file://CVE-2017-7227.patch \
      file://CVE-2017-7301.patch \
      file://CVE-2017-7302.patch \
+     file://CVE-2017-7303.patch \
 "
 S  = "${WORKDIR}/git"
 
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-7303.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-7303.patch
new file mode 100644
index 0000000..59a3b17
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-7303.patch
@@ -0,0 +1,55 @@
+commit a55c9876bb111fd301b4762cf501de0040b8f9db
+Author: Nick Clifton <nickc at redhat.com>
+Date:   Mon Dec 5 13:35:50 2016 +0000
+
+    Fix seg-fault attempting to strip a corrupt binary.
+    
+        PR binutils/20922
+        * elf.c (find_link): Check for null headers before attempting to
+        match them.
+
+Upstream-Status: Backport
+
+CVE: CVE-2017-7303
+Signed-off-by: Thiruvadi Rajaraman <tarjaraman at mvista.com>
+
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog	2017-09-04 16:06:08.996688391 +0530
++++ git/bfd/ChangeLog	2017-09-04 16:09:26.810320541 +0530
+@@ -124,6 +124,10 @@
+        (aout_link_add_symbols): Fix off by one error checking for
+        overflow of string offset.
+ 
++       PR binutils/20922
++       * elf.c (find_link): Check for null headers before attempting to
++       match them.
++
+        PR binutils/20921
+        * aoutx.h (squirt_out_relocs): Check for and report any relocs
+        that could not be recognised.
+Index: git/bfd/elf.c
+===================================================================
+--- git.orig/bfd/elf.c	2017-09-04 16:05:55.612577527 +0530
++++ git/bfd/elf.c	2017-09-04 16:08:35.709900050 +0530
+@@ -1249,13 +1249,19 @@
+   Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd);
+   unsigned int i;
+ 
+-  if (section_match (oheaders[hint], iheader))
++  BFD_ASSERT (iheader != NULL);
++
++  /* See PR 20922 for a reproducer of the NULL test.  */
++  if (oheaders[hint] != NULL
++      && section_match (oheaders[hint], iheader))
+     return hint;
+ 
+   for (i = 1; i < elf_numsections (obfd); i++)
+     {
+       Elf_Internal_Shdr * oheader = oheaders[i];
+ 
++      if (oheader == NULL)
++	continue;
+       if (section_match (oheader, iheader))
+ 	/* FIXME: Do we care if there is a potential for
+ 	   multiple matches ?  */

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