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-rw-r--r--meta/recipes-devtools/elfutils/elfutils-0.158/CVE-2014-0172.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-devtools/elfutils/elfutils-0.158/CVE-2014-0172.patch b/meta/recipes-devtools/elfutils/elfutils-0.158/CVE-2014-0172.patch
new file mode 100644
index 0000000000..6c44314589
--- /dev/null
+++ b/meta/recipes-devtools/elfutils/elfutils-0.158/CVE-2014-0172.patch
@@ -0,0 +1,35 @@
+From 7f1eec317db79627b473c5b149a22a1b20d1f68f Mon Sep 17 00:00:00 2001
+From: Mark Wielaard <mjw@redhat.com>
+Date: Wed, 9 Apr 2014 11:33:23 +0200
+Subject: [PATCH] CVE-2014-0172 Check for overflow before calling malloc to
+ uncompress data.
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1085663
+
+Reported-by: Florian Weimer <fweimer@redhat.com>
+Signed-off-by: Mark Wielaard <mjw@redhat.com>
+
+Index: elfutils-0.158/libdw/dwarf_begin_elf.c
+===================================================================
+--- elfutils-0.158.orig/libdw/dwarf_begin_elf.c 2014-05-01 17:10:01.928213292 +0000
++++ elfutils-0.158/libdw/dwarf_begin_elf.c 2014-05-01 17:10:01.924213375 +0000
+@@ -1,5 +1,5 @@
+ /* Create descriptor from ELF descriptor for processing file.
+- Copyright (C) 2002-2011 Red Hat, Inc.
++ Copyright (C) 2002-2011, 2014 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+@@ -289,6 +289,12 @@
+ memcpy (&size, data->d_buf + 4, sizeof size);
+ size = be64toh (size);
+
++ /* Check for unsigned overflow so malloc always allocated
++ enough memory for both the Elf_Data header and the
++ uncompressed section data. */
++ if (unlikely (sizeof (Elf_Data) + size < size))
++ break;
++
+ Elf_Data *zdata = malloc (sizeof (Elf_Data) + size);
+ if (unlikely (zdata == NULL))
+ break;