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Vulnerability · Published Jan 13, 2020 · Assigned by mitre

CVE-2020-6851

High 7.5

In plain English

A high-severity security flaw in the openjpeg package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.3% (higher than 93% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)5.3%top 7.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

OpenJPEG through 2.3.1 has a heap-based buffer overflow in opj_t1_clbl_decode_processor in openjp2/t1.c because of lack of opj_j2k_update_image_dimensions validation.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20openjpeg2.3.1-r3ALPINE-CVE-2020-6851
Alpine:v3.21openjpeg2.3.1-r3ALPINE-CVE-2020-6851
Alpine:v3.22openjpeg2.3.1-r3ALPINE-CVE-2020-6851
Alpine:v3.23openjpeg2.3.1-r3ALPINE-CVE-2020-6851
Alpine:v3.24openjpeg2.3.1-r3ALPINE-CVE-2020-6851
Debian:12openjpeg22.4.0-1DEBIAN-CVE-2020-6851
Debian:13openjpeg22.4.0-1DEBIAN-CVE-2020-6851
Debian:14openjpeg22.4.0-1DEBIAN-CVE-2020-6851
Ubuntu:22.04:LTSblenderno fix listedUBUNTU-CVE-2020-6851
Ubuntu:24.04:LTSblenderno fix listedUBUNTU-CVE-2020-6851
Ubuntu:25.10blenderno fix listedUBUNTU-CVE-2020-6851
Ubuntu:26.04:LTSblenderno fix listedUBUNTU-CVE-2020-6851
Ubuntu:26.10blenderno fix listedUBUNTU-CVE-2020-6851
Ubuntu:22.04:LTSinsighttoolkit4no fix listedUBUNTU-CVE-2020-6851
Ubuntu:25.10qtwebengine-opensource-srcno fix listedUBUNTU-CVE-2020-6851
Ubuntu:26.10qtwebengine-opensource-srcno fix listedUBUNTU-CVE-2020-6851
Ubuntu:25.10texmakerno fix listedUBUNTU-CVE-2020-6851
Ubuntu:26.04:LTStexmakerno fix listedUBUNTU-CVE-2020-6851
Ubuntu:26.10texmakerno fix listedUBUNTU-CVE-2020-6851

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References