jp2/opjdecompress.c in OpenJPEG through 2.3.1 has a use-after-free that can be triggered if there is a mix of valid and invalid files in a directory operated on by the decompressor. Triggering a double-free may also be possible. This is related to calling opjimagedestroy twice.

In OpenJPEG 2.3.1, there is excessive iteration in the opjt1encodecblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file. This issue is similar to CVE-2018-6616.

Reference: https://github.com/uclouvain/openjpeg/commit/8ee335227bbcaf1614124046aa25e53d67b11ec3 https://github.com/uclouvain/openjpeg/pull/1185/commits/cbe7384016083eac16078b359acd7a842253d503