Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libarchive | Libarchive | 3.2.1 |
| Opensuse | Leap | 42.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00027.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/16/11Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/93781Third Party AdvisoryVDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overPatchThird Party AdvisoryVDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overPatchThird Party AdvisoryVDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-memory-corruptionunknoPatchThird Party AdvisoryVDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-bid_PatchThird Party AdvisoryVDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-detePatchThird Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1377923Issue TrackingPatch
- https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572bIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
- https://security.gentoo.org/glsa/201701-03PatchThird Party AdvisoryVDB Entry
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00027.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/16/11Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/93781Third Party AdvisoryVDB Entry
FAQ
What is CVE-2016-8688?
CVE-2016-8688 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 trigg...
How severe is CVE-2016-8688?
CVE-2016-8688 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-8688?
Check the references section above for vendor advisories and patch information. Affected products include: Libarchive Libarchive, Opensuse Leap.