The tiff_document_render() and tiff_document_get_thumbnail() functions in the TIFF document backend in GNOME Evince through 3.32.0 did not handle errors from TIFFReadRGBAImageOriented(), leading to uninitialized memory use when processing certain TIFF image files.
lists.opensuse.org/opensuse-security-announce/2019-06/msg00089.html
access.redhat.com/errata/RHSA-2019:3553
gitlab.gnome.org/GNOME/evince/issues/1129
lists.debian.org/debian-lts-announce/2019/08/msg00013.html
lists.debian.org/debian-lts-announce/2019/08/msg00014.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7LU4YZK5S46TZAH4J3NYYUYFMOC47LJG/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ6R7NMY44IHIQIY24CV3WV2GLGJPQPZ/
seclists.org/bugtraq/2020/Feb/18
usn.ubuntu.com/3959-1/
www.debian.org/security/2020/dsa-4624