{"id":"UBUNTU-CVE-2023-2731","details":"A NULL pointer dereference flaw was found in Libtiff's LZWDecode() function in the libtiff/tif_lzw.c file. This flaw allows a local attacker to craft specific input data that can cause the program to dereference a NULL pointer when decompressing a TIFF format file, resulting in a program crash or denial of service.","modified":"2026-02-04T02:25:14.314915Z","published":"2023-05-17T22:15:00Z","withdrawn":"2025-07-18T16:53:59Z","related":["USN-6290-1"],"upstream":["CVE-2023-2731"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-2731"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6290-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-2731"}],"affected":[{"package":{"name":"tiff","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/tiff@4.3.0-6ubuntu0.10?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0-6ubuntu0.10"}]}],"versions":["4.3.0-1","4.3.0-2","4.3.0-3","4.3.0-3build1","4.3.0-4","4.3.0-5","4.3.0-6","4.3.0-6ubuntu0.1","4.3.0-6ubuntu0.2","4.3.0-6ubuntu0.3","4.3.0-6ubuntu0.4","4.3.0-6ubuntu0.5","4.3.0-6ubuntu0.6","4.3.0-6ubuntu0.7","4.3.0-6ubuntu0.8","4.3.0-6ubuntu0.9"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff-dev"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff-doc"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff-opengl"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff-opengl-dbgsym"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff-tools"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff-tools-dbgsym"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff5"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff5-dbgsym"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiff5-dev"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiffxx5"},{"binary_version":"4.3.0-6ubuntu0.10","binary_name":"libtiffxx5-dbgsym"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2731.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}