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Sicherheit: Mehrere Probleme in elfutils
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in elfutils
ID: FEDORA-2018-1eec1f0d17
Distribution: Fedora
Plattformen: Fedora 28
Datum: Di, 2. Oktober 2018, 18:34
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16403
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16402
Applikationen: elfutils

Originalnachricht

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Fedora Update Notification
FEDORA-2018-1eec1f0d17
2018-10-02 16:00:51.985672
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Name : elfutils
Product : Fedora 28
Version : 0.174
Release : 1.fc28
URL : http://elfutils.org/
Summary : A collection of utilities and DSOs to handle ELF files and DWARF
data
Description :
Elfutils is a collection of utilities, including stack (to show
backtraces), nm (for listing symbols from object files), size
(for listing the section sizes of an object or archive file),
strip (for discarding symbols), readelf (to see the raw ELF file
structures), elflint (to check for well-formed ELF files) and
elfcompress (to compress or decompress ELF sections).

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Update Information:

Fixes CVE-2018-16062, CVE-2018-16402 and CVE-2018-16403. unstrip: Handle
SHT_GROUP sections. strip: Handle mixed (out of order) allocated/non-allocated
sections. elfcompress: Don't rewrite input file if no section data needs
updating. Try harder to keep same file mode bits (suid) on rewrite. libelf,
libdw and all tools now handle extended shnum and shstrndx correctly.
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ChangeLog:

* Fri Sep 14 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.174-1
- New upstream release
- libelf, libdw and all tools now handle extended shnum and shstrndx
correctly (#1608390).
- elfcompress: Don't rewrite input file if no section data needs
updating. Try harder to keep same file mode bits (suid) on rewrite.
- strip: Handle mixed (out of order) allocated/non-allocated sections.
- unstrip: Handle SHT_GROUP sections.
- backends: RISCV and M68K now have backend implementations to
generate CFI based backtraces.
- Fixes CVE-2018-16062, CVE-2018-16402 and CVE-2018-16403
(#1623753, #1625051, #1625056).
* Tue Jul 31 2018 Florian Weimer <fweimer@redhat.com> - 0.173-8
- Rebuild with fixed binutils
* Sun Jul 29 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.173-7
- Add elfutils-0.173-strip-alloc-nonalloc.patch (#1609577)
* Tue Jul 24 2018 Mark Wielaard <mjw@fedoraproject.org>
- Drop libstdc++-devel BuildRequires. gcc-c++ will pull it in.
* Tue Jul 24 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.173-6
- Update elfutils-0.173-annobingroup.patch.
* Sat Jul 21 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.173-5
- Add BuildRequires gcc-c++ for demangle support.
- Add elfutils-0.173-annobingroup.patch.
* Sat Jul 21 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.173-4
- Add elfutils-0.173-elfcompress.patch (#1607044)
* Thu Jul 12 2018 Fedora Release Engineering <releng@fedoraproject.org> -
0.173-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
* Mon Jul 9 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.173-2
- Update elfutils-0.173-new-notes-hack.patch for new annobin note.
- Unbreak cyclic systemd dependency for buildroot container (#1599083)
* Fri Jun 29 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.173-1
- New upstream release
- More fixes for crashes and hangs found by afl-fuzz. In particular
various functions now detect and break infinite loops caused by bad
DIE tree cycles.
- readelf: Will now lookup the size and signedness of constant value
types to display them correctly (and not just how they were encoded).
- libdw: New function dwarf_next_lines to read CU-less .debug_line data.
dwarf_begin_elf now accepts ELF files containing just .debug_line
or .debug_frame sections (which can be read without needing a DIE
tree from the .debug_info section).
Removed dwarf_getscn_info, which was never implemented.
- backends: Handle BPF simple relocations.
The RISCV backends now handles ABI specific CFI and knows about
RISCV register types and names.
* Wed Jun 20 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.172-2
- Add elfutils-0.172-robustify.patch.
* Mon Jun 11 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.172-1
- New upstream release.
- No functional changes compared to 0.171.
- Various bug fixes in libdw and eu-readelf dealing with bad DWARF5
data. Thanks to running the afl fuzzer on eu-readelf and various
testcases.
- eu-readelf -N is ~15% faster.
* Fri Jun 1 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.171-1
- New upstream release.
- DWARF5 and split dwarf, including GNU DebugFission, support.
- readelf: Handle all new DWARF5 sections.
--debug-dump=info+ will show split unit DIEs when found.
--dwarf-skeleton can be used when inspecting a .dwo file.
Recognizes GNU locviews with --debug-dump=loc.
- libdw: New functions dwarf_die_addr_die, dwarf_get_units,
dwarf_getabbrevattr_data and dwarf_cu_info.
libdw will now try to resolve the alt file on first use
when not set yet with dwarf_set_alt.
dwarf_aggregate_size() now works with multi-dimensional arrays.
- libdwfl: Use process_vm_readv when available instead of ptrace.
- backends: Add a RISC-V backend.
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References:

[ 1 ] Bug #1625050 - CVE-2018-16402 elfutils: Double-free due to double
decompression of sections in crafted ELF causes crash
https://bugzilla.redhat.com/show_bug.cgi?id=1625050
[ 2 ] Bug #1625055 - CVE-2018-16403 elfutils: Heap-based buffer over-read in
libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash
https://bugzilla.redhat.com/show_bug.cgi?id=1625055
[ 3 ] Bug #1623752 - CVE-2018-16062 elfutils: Heap-based buffer over-read in
libdw/dwarf_getaranges.c:dwarf_getaranges() via crafted file
https://bugzilla.redhat.com/show_bug.cgi?id=1623752
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2018-1eec1f0d17' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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