| Name | CVE-2016-8688 |
| Description | The mtree bidder in libarchive 3.2.1 does not keep track of line sizes when extending the read-ahead, which allows remote attackers to cause a denial of service (crash) via a crafted file, which triggers an invalid read in the (1) detect_form or (2) bid_entry function in libarchive/archive_read_support_format_mtree.c. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1600-1, DLA-661-1 |
| Debian Bugs | 840935 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libarchive (PTS) | jessie, jessie (lts) | 3.1.2-11+deb8u11 | fixed |
| stretch (security) | 3.2.2-2+deb9u3 | fixed | |
| stretch (lts), stretch | 3.2.2-2+deb9u4 | fixed | |
| buster (security), buster, buster (lts) | 3.3.3-4+deb10u3 | fixed | |
| bullseye | 3.4.3-2+deb11u1 | fixed | |
| bookworm (security), bookworm | 3.6.2-1+deb12u1 | fixed | |
| trixie | 3.7.4-1 | fixed | |
| sid | 3.7.4-1.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libarchive | source | wheezy | 3.0.4-3+wheezy5 | DLA-661-1 | ||
| libarchive | source | jessie | 3.1.2-11+deb8u4 | DLA-1600-1 | ||
| libarchive | source | (unstable) | 3.2.1-5 | 840935 |
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-heap-based-buffer-overflow-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/
Fixed by: https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15aca