CVE-2020-6851

HIGH EPSS 91.1%

Published Jan 13, 20206y ago · Modified Jun 17, 20262w ago

7.5 CVSS 3.1

High

Published Jan 13, 2020 6y ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

7.5

Exploitability

3.9

Impact

3.6

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

91.1% percentile

Exploit & Patch Status

Public Exploit Known

Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 23

Vendor	Product	Version	Range
uclouvain	openjpeg	*	≤2.3.1
fedoraproject	fedora	30	any
fedoraproject	fedora	31	any
debian	debian_linux	8.0	any
debian	debian_linux	9.0	any
debian	debian_linux	10.0	any
redhat	enterprise_linux	8.0	any
redhat	enterprise_linux_desktop	7.0	any
redhat	enterprise_linux_eus	7.7	any
redhat	enterprise_linux_eus	8.1	any
redhat	enterprise_linux_eus	8.2	any
redhat	enterprise_linux_eus	8.4	any
redhat	enterprise_linux_server	7.0	any
redhat	enterprise_linux_server_aus	7.7	any
redhat	enterprise_linux_server_aus	8.2	any
redhat	enterprise_linux_server_aus	8.4	any
redhat	enterprise_linux_server_tus	7.7	any
redhat	enterprise_linux_server_tus	8.2	any
redhat	enterprise_linux_server_tus	8.4	any
redhat	enterprise_linux_workstation	7.0	any
oracle	georaster	18c	any
oracle	outside_in_technology	8.5.4	any
oracle	outside_in_technology	8.5.5	any

References 10

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

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

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

Third Party Advisory
github.com https://github.com/uclouvain/openjpeg/issues/1228

ExploitThird Party Advisory
lists.debian.org https://lists.debian.org/debian-lts-announce/2020/01/msg00025.html

Mailing ListThird Party Advisory
lists.debian.org https://lists.debian.org/debian-lts-announce/2020/07/msg00008.html

Mailing ListThird Party Advisory
lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LACIIDDCKZJEPKTTFILSOSBQL7L3FC6V/
lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XBRMI2D3XPVWKE3V52KRBW7BJVLS5LD3/
debian.org https://www.debian.org/security/2021/dsa-4882

Third Party Advisory
oracle.com https://www.oracle.com/security-alerts/cpujul2020.html

PatchThird Party Advisory

Remediation

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

PatchThird Party Advisory