CVE-2018-10199

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Source
https://cve.org/CVERecord?id=CVE-2018-10199
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10199.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-10199
Downstream
Published
2018-04-18T15:29:00Z
Modified
2026-07-08T14:59:02Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::File#initilialize_copy(). An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code.

References

Affected packages

Git / github.com/mruby/mruby

Affected ranges

Type
GIT
Repo
https://github.com/mruby/mruby
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
58fb6f421ad9824caae5a2cabb849d48647b90ec
Fixed
b51b21fc63c9805862322551387d9036f2b63433
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.4.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.0.0
1.1.0
1.2.0
1.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10199.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "176470287796102068116200247742974157189",
            "length": 1032
        },
        "id": "CVE-2018-10199-3968ad5e",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/mruby/mruby/commit/b51b21fc63c9805862322551387d9036f2b63433",
        "target": {
            "file": "mrbgems/mruby-io/src/io.c",
            "function": "mrb_io_initialize_copy"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "26428399209722362404772608474695113136",
                "222149713925856606992976566986370645464",
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                "98899778162484268282287483093347673153",
                "29675728426105141391949315817511663971"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2018-10199-74069e8a",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/mruby/mruby/commit/b51b21fc63c9805862322551387d9036f2b63433",
        "target": {
            "file": "mrbgems/mruby-io/src/io.c"
        }
    }
]
vanir_signatures_modified 
"2026-07-08T14:59:02Z"