An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
https://www.debian.org/security/2021/dsa-4869
https://security.netapp.com/advisory/ntap-20210521-0009/
https://security.gentoo.org/glsa/202104-06
https://lists.debian.org/debian-lts-announce/2021/06/msg00023.html
https://gitlab.com/libtiff/libtiff/-/merge_requests/160
https://gitlab.com/libtiff/libtiff/-/commit/c8d613ef497058fe653c467fc84c70a62a4a71b2