CVE catalog
CVE-2020-27842
openjpeg2: CVE-2020-27842
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.52% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | openjpeg2 | sid | 2.5.4-1.1 | fixed |
| Debian | openjpeg2 | forky | 2.5.4-1.1 | fixed |
| Debian | openjpeg2 | trixie | 2.5.3-2.1~deb13u2 | fixed |
| Debian | openjpeg2 | trixie-security | 2.5.3-2.1~deb13u2 | fixed |
| Debian | openjpeg2 | bookworm | 2.5.0-2+deb12u3 | fixed |
| Debian | openjpeg2 | bookworm-security | 2.5.0-2+deb12u3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openjpeg2 | source | sid | 2.4.0-1 | not yet assigned | Not reported | Not reported |
| Debian | openjpeg2 | source | forky | 2.4.0-1 | not yet assigned | Not reported | Not reported |
| Debian | openjpeg2 | source | trixie | 2.4.0-1 | not yet assigned | Not reported | Not reported |
| Debian | openjpeg2 | source | bookworm | 2.4.0-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libopenjp2-7]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· amd64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [libopenjp2-7-dev]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· amd64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [libopenjp2-tools]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· amd64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [libopenjpip7]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· amd64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [libopenjpip-dec-server]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· amd64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [libopenjpip-server]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· amd64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [libopenjpip-viewer]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· all · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· all · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· all · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· all · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
- [openjpeg-doc]Unknown
Source package: [openjpeg2]
Details (4)
2.5.0-2+deb12u3· all · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· all · bookwormFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· all · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
2.5.0-2+deb12u3· all · bookworm-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · bookworm; dsa · openjpeg2 · debian · 12
[Debian 13 (Trixie)]
- [libopenjp2-7]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· amd64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· amd64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
- [libopenjp2-7-dev]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· amd64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· amd64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
- [libopenjp2-tools]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· amd64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· amd64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
- [libopenjpip7]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· amd64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· amd64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
- [libopenjpip-dec-server]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· amd64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· amd64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· arm64 · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
- [libopenjpip-viewer]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· all · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· all · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· all · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· all · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
- [openjpeg-doc]Unknown
Source package: [openjpeg2]
Details (4)
2.5.3-2.1~deb13u2· all · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· all · trixieFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· all · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
2.5.3-2.1~deb13u2· all · trixie-securityFixed · Fixed:
2.4.0-1dsa · openjpeg2 · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2021:4251]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_4251.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-27842]
- [https://osv.dev/vulnerability/DLA-2975-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-27842]
- [https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-1880.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]