| Name | CVE-2020-27842 |
| Description | There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application 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, ELA-596-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openjpeg2 (PTS) | jessie, jessie (lts) | 2.1.0-2+deb8u14 | fixed |
| stretch (security), stretch (lts), stretch | 2.1.2-1.1+deb9u7 | fixed | |
| buster (security), buster, buster (lts) | 2.3.0-2+deb10u2 | fixed | |
| bullseye | 2.4.0-3 | fixed | |
| sid, trixie, bookworm | 2.5.0-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openjpeg2 | source | jessie | 2.1.0-2+deb8u13 | ELA-596-1 | ||
| openjpeg2 | source | stretch | 2.1.2-1.1+deb9u7 | DLA-2975-1 | ||
| openjpeg2 | source | buster | 2.3.0-2+deb10u2 | DSA-4882-1 | ||
| openjpeg2 | source | (unstable) | 2.4.0-1 |
https://github.com/uclouvain/openjpeg/issues/1294
Fixed by: https://github.com/uclouvain/openjpeg/commit/fbd30b064f8f9607d500437b6fedc41431fd6cdc (v2.4.0)