CVEvulnerability
CVE-2020-12762
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-05-09
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-190, CWE-787
Description
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
Affected configurations
• json-c json-c (< 0.15-20200726)
• fedoraproject fedora 30
• fedoraproject fedora 31
• fedoraproject fedora 32
• debian debian linux 8.0
• debian debian linux 9.0
• debian debian linux 10.0
• canonical ubuntu linux 12.04
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.10
• canonical ubuntu linux 20.04
• siemens sinec ins
• siemens sinec ins 1.0
Related
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf Third Party Advisory
- https://github.com/json-c/json-c/pull/592 Exploit, Patch, Third Party Advisory
- https://github.com/rsyslog/libfastjson/issues/161 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202006-13 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210521-0001/ Third Party Advisory
- https://usn.ubuntu.com/4360-1/ Third Party Advisory
- https://usn.ubuntu.com/4360-4/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4741 Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf Third Party Advisory
- https://github.com/json-c/json-c/pull/592 Exploit, Patch, Third Party Advisory
- https://github.com/rsyslog/libfastjson/issues/161 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/07/msg00021.html lists.debian.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202006-13 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210521-0001/ Third Party Advisory
- https://usn.ubuntu.com/4360-1/ Third Party Advisory
- https://usn.ubuntu.com/4360-4/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4741 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-202008.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-637483.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html cert-portal.siemens.com