{"id":"UBUNTU-CVE-2018-20969","details":"do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: this is the same commit as for CVE-2019-13638, but the ! syntax is specific to ed, and is unrelated to a shell metacharacter.","modified":"2026-02-04T04:09:06.131946Z","published":"2019-08-16T04:15:00Z","related":["USN-4071-1","USN-4071-2"],"upstream":["CVE-2018-20969"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20969"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4071-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4071-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-20969"}],"affected":[{"package":{"name":"patch","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/patch@2.7.1-4ubuntu2.4+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.1-4ubuntu2.4+esm1"}]}],"versions":["2.7.1-3","2.7.1-4","2.7.1-4ubuntu1","2.7.1-4ubuntu2","2.7.1-4ubuntu2.3","2.7.1-4ubuntu2.4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"2.7.1-4ubuntu2.4+esm1","binary_name":"patch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20969.json"}},{"package":{"name":"patch","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/patch@2.7.5-1ubuntu0.16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-1ubuntu0.16.04.2"}]}],"versions":["2.7.5-1","2.7.5-1ubuntu0.16.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.7.5-1ubuntu0.16.04.2","binary_name":"patch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20969.json"}},{"package":{"name":"patch","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/patch@2.7.6-2ubuntu1.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.6-2ubuntu1.1"}]}],"versions":["2.7.5-1build1","2.7.6-1","2.7.6-2ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.7.6-2ubuntu1.1","binary_name":"patch"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20969.json"}}],"schema_version":"1.7.3","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"}]}