{"id":"UBUNTU-CVE-2018-1000544","details":"rubyzip gem rubyzip version 1.2.1 and earlier contains a Directory Traversal vulnerability in Zip::File component that can result in write arbitrary files to the filesystem. This attack appear to be exploitable via If a site allows uploading of .zip files , an attacker can upload a malicious file that contains symlinks or files with absolute pathnames \"../\" to write arbitrary files to the filesystem..","modified":"2025-10-24T04:47:21Z","published":"2018-06-26T16:29:00Z","upstream":["CVE-2018-1000544"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1000544"},{"type":"REPORT","url":"https://github.com/rubyzip/rubyzip/issues/369"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1000544"}],"affected":[{"package":{"name":"ruby-zip","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-zip@1.1.7-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.7-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.7-1","binary_name":"ruby-zip"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000544.json"}},{"package":{"name":"ruby-zip","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-zip@1.2.1-1.1~build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.1-1.1~build0.18.04.1"}]}],"versions":["1.2.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.1-1.1~build0.18.04.1","binary_name":"ruby-zip"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000544.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}