jp2/opj_decompress.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 opj_image_destroy twice.
https://github.com/uclouvain/openjpeg/issues/1261
https://lists.debian.org/debian-lts-announce/2020/07/msg00008.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://security.gentoo.org/glsa/202101-29
Source: MITRE
Published: 2020-06-29
Updated: 2022-10-06
Type: CWE-416
Base Score: 5.8
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P
Impact Score: 4.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Impact Score: 4.2
Exploitability Score: 2.2
Severity: MEDIUM