CVE-2020-6851

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Summary

CVECVE-2020-6851
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-01-13 06:15:10 UTC
Updated2026-09-22 18:17:08 UTC
DescriptionOpenJPEG 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.049730000 probability, percentile 0.918210000 (date 2026-09-23)

Problem Types: CWE-787 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 31 All All All
Application Oracle Georaster 18c All All All
Application Oracle Outside In Technology 8.5.4 All All All
Application Oracle Outside In Technology 8.5.5 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux Desktop 7.0 All All All
Operating System Redhat Enterprise Linux Eus 7.7 All All All
Operating System Redhat Enterprise Linux Eus 8.1 All All All
Operating System Redhat Enterprise Linux Eus 8.2 All All All
Operating System Redhat Enterprise Linux Eus 8.4 All All All
Operating System Redhat Enterprise Linux Server 7.0 All All All
Operating System Redhat Enterprise Linux Server Aus 7.7 All All All
Operating System Redhat Enterprise Linux Server Aus 8.2 All All All
Operating System Redhat Enterprise Linux Server Aus 8.4 All All All
Operating System Redhat Enterprise Linux Server Tus 7.7 All All All
Operating System Redhat Enterprise Linux Server Tus 8.2 All All All
Operating System Redhat Enterprise Linux Server Tus 8.4 All All All
Operating System Redhat Enterprise Linux Workstation 7.0 All All All
Application Uclouvain Openjpeg All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 30 Update: mingw-openjpeg2-2.3.1-5.fc30 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] [DLA 2277-1] openjpeg2 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
Heap buffer overflow in libopenjp2 · Issue #1228 · uclouvain/openjpeg · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Third Party Advisory
[SECURITY] Fedora 31 Update: openjpeg2-2.3.1-4.fc31 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Debian -- Security Information -- DSA-4882-1 openjpeg2 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
[SECURITY] [DLA 2081-1] openjpeg2 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
www.openwall.com/lists/oss-security/2026/09/22/6 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Oracle Critical Patch Update Advisory - July 2020 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
[SECURITY] Fedora 30 Update: mingw-openjpeg2-2.3.1-5.fc30 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 31 Update: openjpeg2-2.3.1-4.fc31 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 178518 Debian Security Update for openjpeg2 (DSA 4882-1)
  • 199240 Ubuntu Security Notification for OpenJPEG Vulnerabilities (USN-5952-1)
  • 377111 Alibaba Cloud Linux Security Update for openjpeg2 (ALINUX3-SA-2022:0096)
  • 377206 Alibaba Cloud Linux Security Update for openjpeg2 (ALINUX2-SA-2020:0009)
  • 500471 Alpine Linux Security Update for openjpeg
  • 504228 Alpine Linux Security Update for openjpeg
  • 752044 SUSE Enterprise Linux Security Update for openjpeg2 (SUSE-SU-2022:1252-1)

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