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Date: Sat, 15 Oct 2016 22:59:53 -0400 (EDT)
From: cve-assign@...re.org
To: ago@...too.org
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: Libarchive/bsdtar: multiple crashes

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> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-stack-based-buffer-overflow-in-bsdtar_expand_char-util-c/

>> AddressSanitizer: stack-buffer-overflow ... WRITE of size 4
>> 
>> Upstream was not able to reproduce the issue, maybe different compiler
>> and compiler options, so he committed the fix based on what the
>> stacktrace printed.
>> 
>> https://github.com/libarchive/libarchive/commit/e37b620fe8f14535d737e89a4dcabaed4517bf1a

Use CVE-2016-8687.


> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-detect_form-archive_read_support_format_mtree-c/

>> AddressSanitizer: heap-buffer-overflow ... READ of size 1


> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-memory-corruptionunknown-crash-in-bid_entry-archive_read_support_format_mtree-c/

>> AddressSanitizer: unknown-crash ... READ of size 1


> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-bid_entry-archive_read_support_format_mtree-c/

>> AddressSanitizer: heap-buffer-overflow ... READ of size 1


> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-bid_entry-archive_read_support_format_mtree-c/

>> AddressSanitizer: heap-use-after-free ... READ of size 1


> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-detect_form-archive_read_support_format_mtree-c/

>> AddressSanitizer: heap-use-after-free ... READ of size 1

>> https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15aca

Use CVE-2016-8688 for all of eec077f52bfa2d3f7103b4b74d52572ba8a15aca.
The commit message explains that there is a single code problem that
could lead to the various reports in the above five blog posts.



> https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-read_header-archive_read_support_format_7zip-c/

>> AddressSanitizer: heap-buffer-overflow ... READ of size 1

>> https://github.com/libarchive/libarchive/commit/7f17c791dcfd8c0416e2cd2485b19410e47ef126

Use CVE-2016-8689.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
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