Detections
Analytics
CVE-2018-7456
medium
Description
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.)
References
https://www.debian.org/security/2018/dsa-4349
https://usn.ubuntu.com/3864-1/
https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html
https://lists.debian.org/debian-lts-announce/2018/04/msg00011.html
https://lists.debian.org/debian-lts-announce/2018/04/msg00010.html
https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b
https://github.com/xiaoqx/pocs/tree/master/libtiff
https://access.redhat.com/errata/RHSA-2019:2053