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binutils: infinite loop in find_abstract_instance_name (dwarf2.c)
From: "Agostino Sarubbo" <ago () gentoo org>
Date: Wed, 4 Oct 2017 15:45:57 +0000
Description: binutils is a set of tools necessary to build programs. The relevant ASan output of the issue: # nm -A -a -l -S -s --special-syms --synthetic --with-symbol-versions -D $FILE ==22616==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc2948efe8 (pc 0x0000004248eb bp 0x7ffc2948f8e0 sp 0x7ffc2948efe0 T0) #0 0x4248ea in __asan::Allocator::Allocate(unsigned long, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType, bool) /var/tmp/portage/sys-libs/compiler-rt-sanitizers-5.0.0/work/compiler-rt-5.0.0.src/lib/asan/asan_allocator.cc:381 #1 0x41f8f3 in __asan::asan_malloc(unsigned long, __sanitizer::BufferedStackTrace*) /var/tmp/portage/sys-libs/compiler-rt-sanitizers-5.0.0/work/compiler-rt-5.0.0.src/lib/asan/asan_allocator.cc:814 #2 0x4d8de4 in malloc /var/tmp/portage/sys-libs/compiler-rt-sanitizers-5.0.0/work/compiler-rt-5.0.0.src/lib/asan/asan_malloc_linux.cc:68 #3 0x7ff17b5b237c in bfd_malloc /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/libbfd.c:193:9 #4 0x7ff17b5a7b2f in bfd_get_full_section_contents /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/compress.c:248:21 #5 0x7ff17b5e16d3 in bfd_simple_get_relocated_section_contents /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/simple.c:193:12 #6 0x7ff17b75626e in read_section /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:556:8 #7 0x7ff17b772053 in read_indirect_string /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:730:9 #8 0x7ff17b772053 in read_attribute_value /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:1189 #9 0x7ff17b76ebf4 in read_attribute /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:1306:14 #10 0x7ff17b76ebf4 in find_abstract_instance_name /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:2913 #11 0x7ff17b76ec98 in find_abstract_instance_name /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:2930:12 #12 0x7ff17b76ec98 in find_abstract_instance_name /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:2930:12 [..cut..] #252 0x7ff17b76ec98 in find_abstract_instance_name /var/tmp/portage/sys-devel/binutils-9999/work/binutils/bfd/dwarf2.c:2930:12 Affected version: 2.29.51.20170921 and maybe past releases Fixed version: N/A Commit fix: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=52a93b95ec0771c97e26f0bb28630a271a667bd2 Credit: This bug was discovered by Agostino Sarubbo of Gentoo. CVE: CVE-2017-15024 Reproducer: https://github.com/asarubbo/poc/blob/master/00371-binutils-infiniteloop-find_abstract_instance_name Timeline: 2017-09-22: bug discovered and reported to upstream 2017-09-24: upstream released a patch 2017-10-03: blog post about the issue 2017-10-04: CVE assigned Note: This bug was found with American Fuzzy Lop. This bug was identified with bare metal servers donated by Packet. This work is also supported by the Core Infrastructure Initiative. Permalink: https://blogs.gentoo.org/ago/2017/10/03/binutils-infinite-loop-in-find_abstract_instance_name-dwarf2-c/ -- Agostino Sarubbo Gentoo Linux Developer
Current thread:
- binutils: infinite loop in find_abstract_instance_name (dwarf2.c) Agostino Sarubbo (Oct 04)