CVE-2016-4300

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.

• CWE-190

• 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
• 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

Published

Sep 21, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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