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TI-2020-16894 Aliases CVE-2020-27823GHSA-27x9-7vgq-h9f7

Improper input validation in openjpeg

Priority LOW 36CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 2 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.

Summary

A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y offset input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Why it matters now

EPSS 0.01107 66th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—openjpegopenjpeg 2.4.0—No fix listedCNA
  • openjpeg Vendor— Affected openjpeg 2.4.0 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*before 2.4.0VulnerableThe OpenJPEG Project
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:* Versions before 2.4.0 Vulnerable ·The OpenJPEG Project
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Red Hat 1 advisory

  • RHSA-2021:4251 Released 2021-11-09 · Red Hat rating Moderate
    openjpeg2 security update
    • Red Hat CodeReady Linux Builder (v. 8) openjpeg2-devel-2.4.0-4.el8, openjpeg2-tools-2.4.0-4.el8
    • Red Hat Enterprise Linux AppStream (v. 8) openjpeg2-2.4.0-4.el8, openjpeg2-devel-docs-2.4.0-4.el8, openjpeg2-tools-2.4.0-4.el8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    openjpeg — FEDORA-2020-4cd57a6876

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2020-16895 Improper input validation in openjpegPriority LOW 28
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:4251
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:4251

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27823
  2. 2026-10-03 Alias added: GHSA-27x9-7vgq-h9f7

References

Patch 1

Advisory 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences