CVE-2020-6851

high-risk

Published 2020-01-13

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.

Do I need to act?

1.4% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (20)

Openjpeg

Fedora

Debian Linux

Enterprise Linux

Enterprise Linux Desktop

Enterprise Linux Eus

Enterprise Linux Server

Enterprise Linux Server Aus

Enterprise Linux Server Tus

Enterprise Linux Workstation

Affected Vendors

Debian Redhat Oracle Fedoraproject Uclouvain

References (20)

Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0262

Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0274

Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0296

Exploit https://github.com/uclouvain/openjpeg/issues/1228

Mailing List https://lists.debian.org/debian-lts-announce/2020/01/msg00025.html

Mailing List https://lists.debian.org/debian-lts-announce/2020/07/msg00008.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://www.debian.org/security/2021/dsa-4882

Patch https://www.oracle.com/security-alerts/cpujul2020.html