| Name | CVE-2020-27843 |
| Description | A flaw was found in OpenJPEG in versions prior to 2.4.0. This 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2975-1, DSA-4882-1 |
| Debian Bugs | 983663 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openjpeg2 (PTS) | bullseye | 2.4.0-3 | fixed |
| bullseye (security) | 2.4.0-3+deb11u1 | fixed |
| bookworm, bookworm (security) | 2.5.0-2+deb12u1 | fixed |
| trixie, sid | 2.5.3-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/uclouvain/openjpeg/issues/1297
Partial fix (preventing the out of bounds access): https://github.com/uclouvain/openjpeg/commit/38d661a3897052c7ff0b39b30c29cb067e130121 (2.4.0)