{"id":"UBUNTU-CVE-2017-18206","details":"In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.","modified":"2026-02-04T04:34:55.811275Z","published":"2018-02-27T00:00:00Z","related":["USN-3593-1"],"upstream":["CVE-2017-18206"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-18206"},{"type":"REPORT","url":"https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6d"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3593-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-18206"}],"affected":[{"package":{"name":"zsh","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/zsh@5.1.1-1ubuntu2.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.1-1ubuntu2.1"}]}],"versions":["5.1.1-1ubuntu1","5.1.1-1ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.1.1-1ubuntu2.1","binary_name":"zsh"},{"binary_version":"5.1.1-1ubuntu2.1","binary_name":"zsh-common"},{"binary_version":"5.1.1-1ubuntu2.1","binary_name":"zsh-dev"},{"binary_version":"5.1.1-1ubuntu2.1","binary_name":"zsh-static"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-18206.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}