Out-of-bounds Read in Libarchive
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.
Vulnerability class: Buffer Overflow
EPSS: 0.020 (78.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Libarchive — versions 3.2.1
- Opensuse Leap — versions 42.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (Patch, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Issue Tracking)
- cve@mitre.org (vendor-advisory, Patch, VDB Entry, Third Party Advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (Patch, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2016-8688?
- CVE-2016-8688 is a medium-severity vulnerability in Libarchive, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2017-02-15.
- How severe is CVE-2016-8688?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2016-8688 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.