CVE-2020-6851
libopenjpip-viewer: OpenJPEG through 2.3.1 has a heap-based buffer overflow inopj_t1_clbl_decode_processor in openjp2/t1.c because of lac...
CVE-2020-6851 is fixed in 17 products on 1 platform, first by libopenjp2-7 2.3.1-1ubuntu4, released January 28, 2020. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.1
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0529
92nd percentile
OpenJPEG through 2.3.1 has a heap-based buffer overflow inopj_t1_clbl_decode_processor in openjp2/t1.c because of lack ofopj_j2k_update_image_dimensions validation.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ghostscript · Ubuntu 18.04.6 LTS (bionic) | 9.26~dfsg+0-0ubuntu0.18.04.14 | ghostscript 9.26~dfsg+0-0ubuntu0.18.04.14 | Jan 5, 2021 |
| ghostscript-x · Ubuntu 18.04.6 LTS (bionic) | 9.26~dfsg+0-0ubuntu0.18.04.14 | ghostscript-x 9.26~dfsg+0-0ubuntu0.18.04.14 | Jan 5, 2021 |
| libgs9 · Ubuntu 18.04.6 LTS (bionic) | 9.26~dfsg+0-0ubuntu0.18.04.14 | libgs9 9.26~dfsg+0-0ubuntu0.18.04.14 | Jan 5, 2021 |
| libgs9-common · Ubuntu 18.04.6 LTS (bionic) | 9.26~dfsg+0-0ubuntu0.18.04.14 | libgs9-common 9.26~dfsg+0-0ubuntu0.18.04.14 | Jan 5, 2021 |
| libheif · opensuse-leap 16.0 | 1.23.5-160000.1.1 | OPENSUSE-SU-2026:22052-1 | Nov 7, 2026 |
| libheif · sles 15.7 | 1.23.5-150700.3.24.1 | SUSE-SU-2026:4378-1 | Sep 28, 2026 |
| libheif · sles 16.0 | 1.23.5-160000.1.1 | SUSE-SU-2026:24205-1 | Nov 7, 2026 |
| libopenjp2-7 · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjp2-7 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjp2-7 · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjp2-7 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjp2-7 · Ubuntu 24.10 (oracular) | 2.3.1-1ubuntu4 | libopenjp2-7 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjp2-7 · Ubuntu 25.04 (plucky) | 2.3.1-1ubuntu4 | libopenjp2-7 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjp2-tools · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjp2-tools 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjp2-tools · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjp2-tools 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjp2-tools · Ubuntu 24.10 (oracular) | 2.3.1-1ubuntu4 | libopenjp2-tools 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjp2-tools · Ubuntu 25.04 (plucky) | 2.3.1-1ubuntu4 | libopenjp2-tools 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjp3d-tools · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjp3d-tools 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjp3d-tools · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjp3d-tools 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjp3d7 · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjp3d7 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjp3d7 · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjp3d7 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjpip-dec-server · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjpip-dec-server 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjpip-dec-server · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjpip-dec-server 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjpip-dec-server · Ubuntu 24.10 (oracular) | 2.3.1-1ubuntu4 | libopenjpip-dec-server 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip-dec-server · Ubuntu 25.04 (plucky) | 2.3.1-1ubuntu4 | libopenjpip-dec-server 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip-server · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjpip-server 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjpip-server · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjpip-server 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjpip-server · Ubuntu 24.10 (oracular) | 2.3.1-1ubuntu4 | libopenjpip-server 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip-server · Ubuntu 25.04 (plucky) | 2.3.1-1ubuntu4 | libopenjpip-server 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip-viewer · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjpip-viewer 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjpip-viewer · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjpip-viewer 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjpip-viewer · Ubuntu 24.10 (oracular) | 2.3.1-1ubuntu4 | libopenjpip-viewer 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip-viewer · Ubuntu 25.04 (plucky) | 2.3.1-1ubuntu4 | libopenjpip-viewer 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip7 · Ubuntu 18.04.6 LTS (bionic) | 2.3.0-2+deb10u2build0.18.04.1 | libopenjpip7 2.3.0-2+deb10u2build0.18.04.1 | Jan 5, 2021 |
| libopenjpip7 · Ubuntu 20.04 LTS (focal) | 2.3.1-1ubuntu4 | libopenjpip7 2.3.1-1ubuntu4 | Jan 28, 2020 |
| libopenjpip7 · Ubuntu 24.10 (oracular) | 2.3.1-1ubuntu4 | libopenjpip7 2.3.1-1ubuntu4 | Jan 16, 2026 |
| libopenjpip7 · Ubuntu 25.04 (plucky) | 2.3.1-1ubuntu4 | libopenjpip7 2.3.1-1ubuntu4 | Jan 16, 2026 |
| openjpeg2 · RHEL 8 | 0:2.3.1-2.el8_1 | RHSA-2020:0274 | Jan 29, 2020 |
| openjpeg2 · ol 8 | 0:2.3.1-2.el8_1 | ELSA-2020-0274 | Jan 29, 2020 |
| openjpeg2-devel · RHEL 8 | 0:2.3.1-2.el8_1 | RHSA-2020:0274 | Jan 29, 2020 |
| openjpeg2-devel · ol 8 | 0:2.3.1-2.el8_1 | ELSA-2020-0274 | Jan 29, 2020 |
| openjpeg2-devel-docs · RHEL 8 | 0:2.3.1-2.el8_1 | RHSA-2020:0274 | Jan 29, 2020 |
| openjpeg2-devel-docs · ol 8 | 0:2.3.1-2.el8_1 | ELSA-2020-0274 | Jan 29, 2020 |
| openjpeg2-tools · RHEL 8 | 0:2.3.1-2.el8_1 | RHSA-2020:0274 | Jan 29, 2020 |
| openjpeg2-tools · ol 8 | 0:2.3.1-2.el8_1 | ELSA-2020-0274 | Jan 29, 2020 |
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