CVE-2020-12762

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Source
https://cve.org/CVERecord?id=CVE-2020-12762
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12762.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-12762
Downstream
Related
Published
2020-05-09T18:15:11.283Z
Modified
2026-04-02T02:10:49.667676Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

References

Affected packages

Git / github.com/json-c/json-c

Affected ranges

Type
GIT
Repo
https://github.com/json-c/json-c
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9021cdcdd01fc9dbcbe1f06391848c2ac915212f
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.15-20200726"
        }
    ]
}

Affected versions

json-c-0.*
json-c-0.10-20120530
json-c-0.11-20130402
json-c-0.12-20140410
json-c-0.12.1-20160607
json-c-0.13-20171207
json-c-0.13.1-20180305
json-c-0.14-20200419
json-c-0.16-20220414
json-c-0.17-20230812
json-c-0.18-20240915

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12762.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "30"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "32"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "14.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "19.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "20.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.0-NA"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.0-sp1"
            }
        ]
    }
]