HOMEVULNERABILITIESCVE-2016-4300
HIGH

CVE-2016-4300

CWE-190Published: September 21, 2016· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.

NVD Source

Technical Analysis

CVE-2016-4300 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

libarchive1 product(s)
libarchive
Red Hat7 product(s)
enterprise linux desktopenterprise linux hpc nodeenterprise linux hpc node eusenterprise linux serverenterprise linux server ausenterprise linux server eusenterprise linux workstation
Source: NVD CPE · 8 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573
PATCHhttps://github.com/libarchive/libarchive/issues/718
PATCHhttps://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573
PATCHhttps://github.com/libarchive/libarchive/issues/718
ADVISORYhttp://blog.talosintel.com/2016/06/the-poisoned-archives.html
ADVISORYhttp://rhn.redhat.com/errata/RHSA-2016-1844.html
ADVISORYhttp://www.securityfocus.com/bid/91326
ADVISORYhttp://www.talosintel.com/reports/TALOS-2016-0152/
ADVISORYhttp://blog.talosintel.com/2016/06/the-poisoned-archives.html
ADVISORYhttp://rhn.redhat.com/errata/RHSA-2016-1844.html
ADVISORYhttp://www.securityfocus.com/bid/91326
ADVISORYhttp://www.talosintel.com/reports/TALOS-2016-0152/

All References (24)

→
http://blog.talosintel.com/2016/06/the-poisoned-archives.htmlExploit · Third Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2016-1844.htmlThird Party Advisory
→
http://www.debian.org/security/2016/dsa-3657
→
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
→
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
→
http://www.securityfocus.com/bid/91326Third Party Advisory · VDB Entry
→
http://www.talosintel.com/reports/TALOS-2016-0152/Exploit · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1348439Issue Tracking
→
https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573Issue Tracking · Patch · Third Party Advisory
→
https://github.com/libarchive/libarchive/issues/718Issue Tracking · Patch · Third Party Advisory
→
https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00062&languageid=en-fr
→
https://security.gentoo.org/glsa/201701-03
→
http://blog.talosintel.com/2016/06/the-poisoned-archives.htmlExploit · Third Party Advisory
→
http://rhn.redhat.com/errata/RHSA-2016-1844.htmlThird Party Advisory
→
http://www.debian.org/security/2016/dsa-3657

Quick Facts

CVE IDCVE-2016-4300
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-190
CISA KEVNo
Affected2 vendor(s)
PublishedSep 21, 2016

Related CVEs (CWE-190)

CVE-2010-3254
10.0
CVE-2012-5143
10.0
CVE-2008-2663
10.0
CVE-2010-1233
10.0
CVE-2012-5835
10.0
CVE-2013-2555
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-4300 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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