VDB
ALPINE-CVE-2020-12762
ALPINE-CVE-2020-12762
PUBLISHED
CVSS 7.800000190734863 HIGH
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.24 | libfastjson | 0, 0 |
| Alpine:v3.24 | json-c | 0, 0 |
| Alpine:v3.19 | json-c | 0.12.1-r0, 0.12-r1, 0.12-r0 |
| Alpine:v3.22 | json-c | 0.12.1-r2, 0.14-r0, 0.12.1-r0 |
| Alpine:v3.17 | libfastjson | 0, 0.99.8-r0, 0.99.9-r0 |
| Alpine:v3.21 | json-c | 0.12.1-r2, 0.13.1-r0, 0.14-r0 |
| Alpine:v3.12 | json-c | 0.12-r1, 0, 0.11-r0 |
| Alpine:v3.10 | json-c | 0.11-r0, 0, 0.12.1-r2 |
| Alpine:v3.11 | json-c | 0.12.1-r2, 0, 0 |
| Alpine:v3.15 | libfastjson | 0, 0, 0.99.9-r0 |
| Alpine:v3.20 | libfastjson | 0.99.8-r0, 0, 0.99.2-r0 |
| Alpine:v3.23 | libfastjson | 0.99.8-r1, 0.99.8-r2, 0.99.9-r0 |
| Alpine:v3.22 | libfastjson | 0.99.8-r0, 0.99.9-r1, 0.99.8-r2 |
| Alpine:v3.9 | json-c | 0.12-r1, 0.11-r0, 0.10-r0 |
| Alpine:v3.16 | json-c | 0.11-r0, 0.12.1-r0, 0.12.1-r1 |
| Alpine:v3.23 | json-c | 0, 0, 0 |
| Alpine:v3.20 | json-c | 0.12.1-r1, 0, 0 |
| Alpine:v3.14 | json-c | 0.10-r0, 0.12-r1, 0.12.1-r1 |
| Alpine:v3.18 | libfastjson | 0, 0, 0.99.9-r1 |
| Alpine:v3.13 | json-c | 0.10-r0, 0, 0.12-r1 |
…and 6 more
Timeline
- May 9, 2020 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 15, 2026 CVE Updated