{"id":"UBUNTU-CVE-2016-4300","details":"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.","modified":"2026-04-22T10:43:00.250655Z","published":"2016-06-23T00:00:00Z","related":["USN-3033-1"],"upstream":["CVE-2016-4300"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-4300"},{"type":"REPORT","url":"http://blog.talosintel.com/2016/06/the-poisoned-archives.html"},{"type":"REPORT","url":"http://www.talosintel.com/reports/TALOS-2016-0152/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3033-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-4300"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libarchive@3.1.2-7ubuntu2.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-7ubuntu2.3"}]}],"versions":["3.1.2-5ubuntu1","3.1.2-7ubuntu1","3.1.2-7ubuntu2","3.1.2-7ubuntu2.1","3.1.2-7ubuntu2.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bsdcpio","binary_version":"3.1.2-7ubuntu2.3"},{"binary_name":"bsdtar","binary_version":"3.1.2-7ubuntu2.3"},{"binary_name":"libarchive13","binary_version":"3.1.2-7ubuntu2.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4300.json"}},{"package":{"name":"libarchive","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libarchive@3.1.2-11ubuntu0.16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-11ubuntu0.16.04.2"}]}],"versions":["3.1.2-11build1","3.1.2-11ubuntu0.16.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bsdcpio","binary_version":"3.1.2-11ubuntu0.16.04.2"},{"binary_name":"bsdtar","binary_version":"3.1.2-11ubuntu0.16.04.2"},{"binary_name":"libarchive13","binary_version":"3.1.2-11ubuntu0.16.04.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4300.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}