CVE-2016-8688
UnknownEPSS 1.98%
Last modified
CVE-2016-8688 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libarchive | Libarchive | 3.2.1 |
| Opensuse | Leap | 42.2 |
References
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00027.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/16/11Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/93781Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-bid_entry-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-detect_form-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-memory-corruptionunknown-crash-in-bid_entry-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-bid_entry-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-detect_form-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1377923Issue Tracking, Patch
- https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15acaIssue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201701-03Patch, Third Party Advisory, VDB Entry
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00027.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/16/11Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/93781Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-bid_entry-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-detect_form-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-memory-corruptionunknown-crash-in-bid_entry-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-bid_entry-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-use-after-free-in-detect_form-archive_read_support_format_mtree-c/Patch, Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1377923Issue Tracking, Patch
- https://github.com/libarchive/libarchive/commit/eec077f52bfa2d3f7103b4b74d52572ba8a15acaIssue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201701-03Patch, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-8688?
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.
How severe is CVE-2016-8688?
Severity scoring for CVE-2016-8688 is pending analysis. The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.
How do I fix CVE-2016-8688?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2016-8688?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST