diff --git a/elfutils-0.158-CVE-2014-0172.patch b/elfutils-0.158-CVE-2014-0172.patch new file mode 100644 index 0000000..3b76360 --- /dev/null +++ b/elfutils-0.158-CVE-2014-0172.patch @@ -0,0 +1,28 @@ +commit 7f1eec317db79627b473c5b149a22a1b20d1f68f +Author: Mark Wielaard +Date: Wed Apr 9 11:33:23 2014 +0200 + + 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 + Signed-off-by: Mark Wielaard + +diff --git a/libdw/dwarf_begin_elf.c b/libdw/dwarf_begin_elf.c +index 79daeac..34ea373 100644 +--- a/libdw/dwarf_begin_elf.c ++++ b/libdw/dwarf_begin_elf.c +@@ -282,6 +282,12 @@ check_section (Dwarf *result, GElf_Ehdr *ehdr, Elf_Scn *scn, bool inscngrp) + 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; diff --git a/elfutils.spec b/elfutils.spec index 1b90c02..3bbd621 100644 --- a/elfutils.spec +++ b/elfutils.spec @@ -1,7 +1,7 @@ Name: elfutils Summary: A collection of utilities and DSOs to handle compiled objects Version: 0.158 -%global baserelease 2 +%global baserelease 3 URL: https://fedorahosted.org/elfutils/ %global source_url http://fedorahosted.org/releases/e/l/elfutils/%{version}/ License: GPLv3+ and (GPLv2+ or LGPLv3+) @@ -48,6 +48,7 @@ Patch1: %{?source_url}elfutils-robustify.patch Patch2: %{?source_url}elfutils-portability.patch Patch3: elfutils-0.158-mod-e_type.patch +Patch4: elfutils-0.158-CVE-2014-0172.patch %if !%{compat} Release: %{baserelease}%{?dist} @@ -213,6 +214,7 @@ sed -i.scanf-m -e 's/%m/%a/g' src/addr2line.c tests/line2addr.c %endif %patch3 -p1 -b .e_type +%patch4 -p1 -b .CVE-2014-0172 find . -name \*.sh ! -perm -0100 -print | xargs chmod +x @@ -333,6 +335,9 @@ rm -rf ${RPM_BUILD_ROOT} %{_libdir}/libelf.a %changelog +* Tue Apr 10 2014 Mark Wielaard - 0.158-3 +- Add elfutils-0.158-CVE-2014-0172.patch (#1085729) + * Tue Mar 11 2014 Mark Wielaard - 0.158-2 - Add elfutils-0.158-mod-e_type.patch.