Debian 9 Stretch: DLA-2975-1 Critical: OpenJPEG2 Denial Of Service

CVE-2020-27842

Null pointer dereference through specially crafted input. The highest impact
of this flaw is to application availability.


CVE-2020-27843

The flaw allows an attacker to provide specially crafted input to the
conversion or encoding functionality, causing an out-of-bounds read. The
highest threat from this vulnerability is system availability.


CVE-2021-29338

Integer overflow allows remote attackers to crash the application, causing a
denial of service. This occurs when the attacker uses the command line
option "-ImgDir" on a directory that contains 1048576 files.


CVE-2022-1122

Input directory with a large number of files can lead to a segmentation
fault and a denial of service due to a call of free() on an uninitialized
pointer.

For Debian 9 stretch, these problems have been fixed in version
2.1.2-1.1+deb9u7.

We recommend that you upgrade your openjpeg2 packages.

For the detailed security status of openjpeg2 please refer to