Debian 9 Stretch DLA-2550-1 Critical: Openjpeg2 Overflow Error Fixes

CVE-2020-27814

A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files.

CVE-2020-27823

Wrong computation of x1,y1 if -d option is used, resulting in heap buffer
overflow.

CVE-2020-27824

Global buffer overflow on irreversible conversion when too many
decomposition levels are specified.

CVE-2020-27841

Crafted input to be processed by the openjpeg encoder could cause an
out-of-bounds read.

CVE-2020-27844

Crafted input to be processed by the openjpeg encoder could cause an
out-of-bounds write.

CVE-2020-27845

Crafted input can cause out-of-bounds-read.

For Debian 9 stretch, these problems have been fixed in version
2.1.2-1.1+deb9u6.

We recommend that you upgrade your openjpeg2 packages.

For the detailed security status of openjpeg2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/openjpeg2

Further information about Debian LTS security advisories, how to apply