An openjpeg2 security update has been released for Debian GNU/Linux 8 LTS to address a heap-based buffer overflow in opj_t1_clbl_decode_processor in libopenjp2.so.

Package : openjpeg2
Version : 2.1.0-2+deb8u9
CVE ID : CVE-2020-6851

OpenJPEG had a heap-based buffer overflow in opj_t1_clbl_decode_processor
in libopenjp2.so.

For Debian 8 "Jessie", this problem has been fixed in version
2.1.0-2+deb8u9.

We recommend that you upgrade your openjpeg2 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS