opj_t1_clbl_decode_processor in openjp2/t1.c in OpenJPEG 2.3.1 through 2020-01-28 has a heap-based buffer overflow in the qmfbid==1 case, a different issue than CVE-2020-6851.
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.debian.org/security/2021/dsa-4882
https://lists.debian.org/debian-lts-announce/2020/07/msg00008.html
https://lists.debian.org/debian-lts-announce/2020/01/msg00035.html
https://github.com/uclouvain/openjpeg/issues/1231
https://access.redhat.com/errata/RHSA-2020:0694
https://access.redhat.com/errata/RHSA-2020:0570