json-c: JSON-C implements a reference counting object model that allows users to easily construct JavaScript Object Notation...
CVE-2020-12762 is fixed in 11 products on 1 platform, first by libjson-c3 0.12.1-1.3ubuntu0.3, released May 9, 2020. It is not reported as exploited. Patch Radar priority: High.
JSON-C implements a reference counting object model that allows users to easily construct JavaScript Object Notation (JSON) objects in C, output them as JSON formatted strings, and parse JSON formatted strings back into the C representation of JSON objects. Security Fix(es): * json-c: integer overflow and out-of-bounds write via a large JSON file (CVE-2020-12762) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| json-c · RHEL 8 | 0:0.13.1-2.el8 | RHSA-2021:4382 | Nov 9, 2021 |
| json-c · amzn 2023 | 0.14-8.amzn2023.0.2 | ALAS2023-2023-232 | Jun 21, 2023 |
| json-c · ol 8 | 0:0.13.1-2.el8 | ELSA-2021-4382 | Nov 16, 2021 |
| json-c · rocky 8 | 0:0.13.1-2.el8 | RLSA-2021:4382 | Nov 9, 2021 |
| json-c-debuginfo · amzn 2023 | 0.14-8.amzn2023.0.2 | ALAS2023-2023-232 | Jun 21, 2023 |
| json-c-debugsource · amzn 2023 | 0.14-8.amzn2023.0.2 | ALAS2023-2023-232 | Jun 21, 2023 |
| json-c-devel · RHEL 8 | 0:0.13.1-2.el8 | RHSA-2021:4382 | Nov 9, 2021 |
| json-c-devel · almalinux 8 | 0.13.1-2.el8 | ALSA-2021:4382 | Nov 9, 2021 |
| json-c-devel · amzn 2023 | 0.14-8.amzn2023.0.2 | ALAS2023-2023-232 | Jun 21, 2023 |
| json-c-devel · ol 8 | 0:0.13.1-2.el8 | ELSA-2021-4382 | Nov 16, 2021 |
| json-c-doc · RHEL 8 | 0:0.13.1-2.el8 | RHSA-2021:4382 | Nov 9, 2021 |
| json-c-doc · almalinux 8 | 0.13.1-2.el8 | ALSA-2021:4382 | Nov 9, 2021 |
| json-c-doc · amzn 2023 | 0.14-8.amzn2023.0.2 | ALAS2023-2023-232 | Jun 21, 2023 |
| json-c-doc · ol 8 | 0:0.13.1-2.el8 | ELSA-2021-4382 | Nov 16, 2021 |
| libfastjson · Debian 11.6 (bullseye) | 0.99.9-1+deb11u1 | DLA-4258-1 | Jul 28, 2025 |
| libfastjson · RHEL 8 | 0:0.99.9-2.el8 | RHSA-2023:6976 | Nov 14, 2023 |
| libfastjson · RHEL 9 | 0:0.99.9-5.el9 | RHSA-2023:6431 | Nov 7, 2023 |
| libfastjson · almalinux 8 | 0.99.9-2.el8 | ALSA-2023:6976 | Nov 14, 2023 |
| libfastjson · almalinux 9 | 0.99.9-5.el9 | ALSA-2023:6431 | Nov 7, 2023 |
| libfastjson · amzn 2023 | 0.99.9-1.amzn2023.0.3 | ALAS2023-2023-205 | Jun 5, 2023 |
| libfastjson · ol 8 | 0:0.99.9-2.el8 | ELSA-2023-6976 | Nov 17, 2023 |
| libfastjson · ol 9 | 0:0.99.9-5.el9 | ELSA-2023-6431 | Nov 11, 2023 |
| libfastjson · rocky 8 | 0:0.99.9-2.el8 | RLSA-2023:6976 | Jun 27, 2026 |
| libfastjson · rocky 9 | 0:0.99.9-5.el9 | RLSA-2023:6431 | Jun 25, 2026 |
| libfastjson-debuginfo · amzn 2023 | 0.99.9-1.amzn2023.0.3 | ALAS2023-2023-205 | Jun 5, 2023 |
| libfastjson-debugsource · amzn 2023 | 0.99.9-1.amzn2023.0.3 | ALAS2023-2023-205 | Jun 5, 2023 |
| libfastjson-devel · RHEL 9 | 0:0.99.9-5.el9 | RHSA-2023:6431 | Nov 7, 2023 |
| libfastjson-devel · almalinux 9 | 0.99.9-5.el9 | ALSA-2023:6431 | Nov 7, 2023 |
| libfastjson-devel · amzn 2023 | 0.99.9-1.amzn2023.0.3 | ALAS2023-2023-205 | Jun 5, 2023 |
| libfastjson-devel · ol 9 | 0:0.99.9-5.el9 | ELSA-2023-6431 | Nov 11, 2023 |
| libjson-c3 · Ubuntu 18.04.6 LTS (bionic) | 0.12.1-1.3ubuntu0.3 | libjson-c3 0.12.1-1.3ubuntu0.3 | May 9, 2020 |
| libjson-c4 · Ubuntu 20.04 LTS (focal) | 0.13.1+dfsg-7ubuntu0.3 | libjson-c4 0.13.1+dfsg-7ubuntu0.3 | May 9, 2020 |
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