A NULL pointer dereference flaw was found in the way openjpeg 2.1.2 decoded certain input images. Due to a logic error in the code responsible for decoding the input image, an application using openjpeg to process image data could crash when processing a crafted image.
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.debian.org/security/2017/dsa-3768
https://security.gentoo.org/glsa/201710-26
https://github.com/szukw000/openjpeg/commit/7b28bd2b723df6be09fe7791eba33147c1c47d0d