Back to Database
Status published
Unknown
CVE-2020-12762
json-c through 0.14 has an integer overflow and out-of-bounds write...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-12762
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/json-c/json-c/pull/592
- https://github.com/rsyslog/libfastjson/issues/161
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/
- https://usn.ubuntu.com/4360-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/
- https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html
- https://usn.ubuntu.com/4360-4/
- https://security.gentoo.org/glsa/202006-13
- https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html
- https://www.debian.org/security/2020/dsa-4741
- https://security.netapp.com/advisory/ntap-20210521-0001/
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html
Affected Vendor
json-c
View all reports →Affected Software
json-c, fedora, debian linux, ubuntu linux, sinec ins
Vulnerable Versions:
0, 30, 31, 32, 8.0, 9.0, 10.0, 12.04, 14.04, 16.04, 18.04, 19.10, 20.04, 1.0
Timeline
Official Publish:
May 9th, 2020
Last Modified:
November 3rd, 2025
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.