CVE-2016-8688
First published: Wed Sep 21 2016(Updated: )
Bookkeeping errors when extending the read-ahead buffer when trying to identify an mtree archive could lead libarchive to significantly overcalculate the size of the line being read, resulting in heap out-of-bounds reads or a crash. Disclosed on oss-security: <a href="http://seclists.org/oss-sec/2016/q3/516">http://seclists.org/oss-sec/2016/q3/516</a> Upstream issue: <a href="https://github.com/libarchive/libarchive/issues/747">https://github.com/libarchive/libarchive/issues/747</a> Upstream fix: <a href="https://github.com/libarchive/libarchive/commit/eec077f">https://github.com/libarchive/libarchive/commit/eec077f</a> All the mtree-related crashes in the oss-sec post came from the same underlying issue and were resolved in this commit.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libarchive | <3.2.2 | 3.2.2 |
| libarchive | =3.2.1 | |
| openSUSE | =42.2 |
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Reference Links
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00027.html
- http://www.openwall.com/lists/oss-security/2016/10/16/11
- http://www.securityfocus.com/bid/93781
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-bid_entry-archive_read_support_format_mtree-c/
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-detect_form-archive_read_support_format_mtree-c/
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-memory-corruptionunknown-crash-in-bid_entry-archive_read_support_format_mtree-c/
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-bid_entry-archive_read_support_format_mtree-c/
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-detect_form-archive_read_support_format_mtree-c/
- https://bugzilla.redhat.com/show_bug.cgi?id=1377923
- https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15aca
- https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
- https://security.gentoo.org/glsa/201701-03
- http://seclists.org/oss-sec/2016/q3/516
- https://github.com/libarchive/libarchive/issues/747
- https://github.com/libarchive/libarchive/commit/eec077f
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1378669
- https://access.redhat.com/security/updates/classification/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1385664
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- vendor/libarchive
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- version/libarchive/3.2.1
- vendor/opensuse
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- version/opensuse/42.2