CVE-2020-12762
- State
- Published
- Severity
- 7.8 High
- Published
- May 9, 2020
- Updated
- Oct 14, 2026
- Reserved
- May 9, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/json-c/json-c/pull/592
- https://github.com/rsyslog/libfastjson/issues/161
- FEDORA-2020-63c6f4ab1dvendor-advisory
- USN-4360-1vendor-advisory
- FEDORA-2020-847ad856abvendor-advisory
- FEDORA-2020-7eb7eac270vendor-advisory
- [debian-lts-announce] 20200531 [SECURITY] [DLA 2228-1] json-c security updatemailing-list
- [debian-lts-announce] 20200531 [SECURITY] [DLA 2228-2] json-c regression updatemailing-list
- USN-4360-4vendor-advisory
- GLSA-202006-13vendor-advisory
- [debian-lts-announce] 20200730 [SECURITY] [DLA 2301-1] json-c security updatemailing-list
- DSA-4741vendor-advisory
- https://security.netapp.com/advisory/ntap-20210521-0001/
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- [debian-lts-announce] 20230620 [SECURITY] [DLA 3461-1] libfastjson security updatemailing-list
- https://lists.debian.org/debian-lts-announce/2025/07/msg00021.html
- https://cert-portal.siemens.com/productcert/html/ssa-637483.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-202008.html
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