{"id":"CVE-2018-7456","details":"A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in tif_print.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 when using the tiffinfo tool to print crafted TIFF information, a different vulnerability than CVE-2017-18013. (This affects an earlier part of the TIFFPrintDirectory function that was not addressed by the CVE-2017-18013 patch.)","modified":"2026-04-02T01:27:12.815805Z","published":"2018-02-24T06:29:00.630Z","related":["MGASA-2018-0208","SUSE-SU-2018:1826-1","SUSE-SU-2018:1835-1","SUSE-SU-2018:1889-1","openSUSE-SU-2024:11461-1"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2053"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/04/msg00010.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/04/msg00011.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3864-1/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2051"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4349"},{"type":"REPORT","url":"http://bugzilla.maptools.org/show_bug.cgi?id=2778"},{"type":"FIX","url":"https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b"},{"type":"EVIDENCE","url":"https://github.com/xiaoqx/pocs/tree/master/libtiff"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vadz/libtiff","events":[{"introduced":"0"},{"last_affected":"636f2684a0faaf9510ae4219f286a53f98f37483"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"4.0.9"}]}},{"type":"GIT","repo":"https://gitlab.com/libtiff/libtiff","events":[{"introduced":"0"},{"fixed":"be4c85b16e8801a16eec25e80eb9f3dd6a96731b"}]}],"versions":["Pre360","Release-","Release-3-7-0","Release-v3-5-","Release-v3-5-4","Release-v3-5-5","Release-v3-5-7","Release-v3-6-0","Release-v3-6-0beta2","Release-v3-6-1","Release-v3-7-0-alpha","Release-v3-7-0beta","Release-v3-7-0beta2","Release-v3-7-1","Release-v3-7-2","Release-v3-7-3","Release-v3-7-4","Release-v3-8-0","Release-v3-8-1","Release-v3-8-2","Release-v3-9-0","Release-v3-9-0beta","Release-v3-9-1","Release-v3-9-2","Release-v3-9-3","Release-v3-9-4","Release-v3-9-5","Release-v3-9-6","Release-v3-9-7","Release-v4-0-0","Release-v4-0-0alpha","Release-v4-0-0alpha4","Release-v4-0-0alpha5","Release-v4-0-0alpha6","Release-v4-0-0beta7","Release-v4-0-1","Release-v4-0-2","Release-v4-0-3","Release-v4-0-4","Release-v4-0-4beta","Release-v4-0-5","Release-v4-0-6","Release-v4-0-7","Release-v4-0-8","Release-v4-0-9","orig","v3.5.3","v3.5.4","v3.5.5","v3.5.7","v3.6.0","v3.6.0beta2","v3.6.1","v3.7.0","v3.7.0alpha","v3.7.0beta","v3.7.0beta2","v3.7.1","v3.7.2","v3.7.3","v3.7.4","v3.8.0","v3.8.1","v3.8.2","v3.9.0","v3.9.0beta","v3.9.1","v3.9.2","v3.9.3","v3.9.4","v3.9.5","v3.9.6","v3.9.7","v4.0.0","v4.0.0alpha","v4.0.0alpha4","v4.0.0alpha5","v4.0.0alpha6","v4.0.0beta7","v4.0.1","v4.0.2","v4.0.3","v4.0.4","v4.0.4beta","v4.0.5","v4.0.6","v4.0.7","v4.0.8","v4.0.9"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.10"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-7456.json","vanir_signatures":[{"target":{"file":"libtiff/tif_print.c"},"source":"https://gitlab.com/libtiff/libtiff@be4c85b16e8801a16eec25e80eb9f3dd6a96731b","signature_type":"Line","deprecated":false,"signature_version":"v1","id":"CVE-2018-7456-2b4754e2","digest":{"line_hashes":["34583969753986054719441197622849502612","84357797237757663714675035969338159885","49276762148639282215011376252495684977","159972419896207215456600915911226522624"],"threshold":0.9}},{"target":{"file":"libtiff/tif_dirread.c","function":"TIFFReadDirectory"},"source":"https://gitlab.com/libtiff/libtiff@be4c85b16e8801a16eec25e80eb9f3dd6a96731b","signature_type":"Function","deprecated":false,"signature_version":"v1","id":"CVE-2018-7456-3f789ec8","digest":{"length":15750,"function_hash":"249155504209871612604592134427141272210"}},{"target":{"file":"libtiff/tif_dirread.c"},"source":"https://gitlab.com/libtiff/libtiff@be4c85b16e8801a16eec25e80eb9f3dd6a96731b","signature_type":"Line","deprecated":false,"signature_version":"v1","id":"CVE-2018-7456-41eb7abc","digest":{"line_hashes":["151236167089328093800155427129988450403","29527367330554074330525017639318561601","331342295405348160418709638717073919851","37158704691211454594356526442508833948","113988872953227167942243030915917190850","217977255141315749192365297820863529054","262442293337999918738821387382736178874","43380298599158644641616099738336612487","190605399355420614280669035574449904392","53738916860654039232794734900171841566","144793703646904908955972730992105473359","328940481971495652685943001845163846725","78582549672764719712755235806850455943","18490697804396230632408432117234630633","88895387933003049356504067916598809154"],"threshold":0.9}},{"target":{"file":"libtiff/tif_print.c","function"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