diff options
Diffstat (limited to 'meta/recipes-devtools/elfutils/elfutils-0.158/CVE-2014-0172.patch')
| -rw-r--r-- | meta/recipes-devtools/elfutils/elfutils-0.158/CVE-2014-0172.patch | 35 |
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; |