Vulnerability · Published May 13, 2021 · Assigned by redhat
CVE-2020-27824
Medium 5.5
In plain English
A medium-severity improper input validation in openjpeg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.6%top 24.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | openjpeg2 | 2.4.0-4.el8 | ALSA-2021:4251 |
| AlmaLinux:8 | openjpeg2-devel | 2.4.0-4.el8 | ALSA-2021:4251 |
| AlmaLinux:8 | openjpeg2-devel-docs | 2.4.0-4.el8 | ALSA-2021:4251 |
| AlmaLinux:8 | openjpeg2-tools | 2.4.0-4.el8 | ALSA-2021:4251 |
| Alpine:v3.20 | openjpeg | 2.3.1-r6 | ALPINE-CVE-2020-27824 |
| Alpine:v3.21 | openjpeg | 2.3.1-r6 | ALPINE-CVE-2020-27824 |
| Alpine:v3.22 | openjpeg | 2.3.1-r6 | ALPINE-CVE-2020-27824 |
| Alpine:v3.23 | openjpeg | 2.3.1-r6 | ALPINE-CVE-2020-27824 |
| Alpine:v3.24 | openjpeg | 2.3.1-r6 | ALPINE-CVE-2020-27824 |
| Debian:12 | openjpeg2 | 2.4.0-1 | DEBIAN-CVE-2020-27824 |
| Debian:13 | openjpeg2 | 2.4.0-1 | DEBIAN-CVE-2020-27824 |
| Debian:14 | openjpeg2 | 2.4.0-1 | DEBIAN-CVE-2020-27824 |
| Rocky Linux:8 | openjpeg2 | 0:2.4.0-4.el8 | RLSA-2021:4251 |
| Ubuntu:22.04:LTS | blender | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:24.04:LTS | blender | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:25.10 | blender | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:26.04:LTS | blender | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:26.10 | blender | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:22.04:LTS | insighttoolkit4 | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:22.04:LTS | openjpeg2 | 2.3.1-1ubuntu5 | UBUNTU-CVE-2020-27824 |
| Ubuntu:25.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:26.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:25.10 | texmaker | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:26.04:LTS | texmaker | no fix listed | UBUNTU-CVE-2020-27824 |
| Ubuntu:26.10 | texmaker | no fix listed | UBUNTU-CVE-2020-27824 |
Affected products (as reported)
Weakness: CWE-20
References
- FEDORA-2020-4cd57a6876 vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-d32853a28d vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20210208 [SECURITY] [DLA 2550-1] openjpeg2 security update mailing-list, x_refsource_MLIST
- DSA-4882 vendor-advisory, x_refsource_DEBIAN
- https://bugzilla.redhat.com/show_bug.cgi?id=1905723 x_refsource_MISC
- https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC