{"id":"UBUNTU-CVE-2018-18661","details":"An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function LZWDecode in the file tif_lzw.c.","modified":"2026-04-22T12:59:33.665743Z","published":"2018-10-26T00:00:00Z","related":["USN-3864-1"],"upstream":["CVE-2018-18661"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18661"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3864-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-18661"}],"affected":[{"package":{"name":"tiff","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tiff@4.0.3-7ubuntu0.10?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.3-7ubuntu0.10"}]}],"versions":["4.0.2-4ubuntu3","4.0.3-5ubuntu1","4.0.3-6","4.0.3-6ubuntu1","4.0.3-7","4.0.3-7ubuntu0.1","4.0.3-7ubuntu0.2","4.0.3-7ubuntu0.3","4.0.3-7ubuntu0.4","4.0.3-7ubuntu0.6","4.0.3-7ubuntu0.7","4.0.3-7ubuntu0.8","4.0.3-7ubuntu0.9"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.0.3-7ubuntu0.10","binary_name":"libtiff-opengl"},{"binary_version":"4.0.3-7ubuntu0.10","binary_name":"libtiff-tools"},{"binary_version":"4.0.3-7ubuntu0.10","binary_name":"libtiff5"},{"binary_version":"4.0.3-7ubuntu0.10","binary_name":"libtiffxx5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18661.json"}},{"package":{"name":"tiff","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tiff@4.0.6-1ubuntu0.5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.6-1ubuntu0.5"}]}],"versions":["4.0.3-12.3ubuntu2","4.0.5-1","4.0.6-1","4.0.6-1ubuntu0.1","4.0.6-1ubuntu0.2","4.0.6-1ubuntu0.3","4.0.6-1ubuntu0.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.0.6-1ubuntu0.5","binary_name":"libtiff-opengl"},{"binary_version":"4.0.6-1ubuntu0.5","binary_name":"libtiff-tools"},{"binary_version":"4.0.6-1ubuntu0.5","binary_name":"libtiff5"},{"binary_version":"4.0.6-1ubuntu0.5","binary_name":"libtiffxx5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18661.json"}},{"package":{"name":"tiff","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tiff@4.0.9-5ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.9-5ubuntu0.1"}]}],"versions":["4.0.8-5","4.0.8-6","4.0.9-1","4.0.9-2","4.0.9-3","4.0.9-4","4.0.9-4ubuntu1","4.0.9-5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.0.9-5ubuntu0.1","binary_name":"libtiff-opengl"},{"binary_version":"4.0.9-5ubuntu0.1","binary_name":"libtiff-tools"},{"binary_version":"4.0.9-5ubuntu0.1","binary_name":"libtiff5"},{"binary_version":"4.0.9-5ubuntu0.1","binary_name":"libtiffxx5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18661.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}