CVE-2018-11743

The initcopy function in kernel.c in mruby 1.4.1 makes initializecopy calls for TTICLASS objects, which allows attackers to cause a denial of service (mrbhash_keys uninitialized pointer and application crash) or possibly have unspecified other impact.

Database specific

{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/mruby/mruby

Affected ranges

Type

GIT

Repo

https://github.com/mruby/mruby

Events

Introduced

023070a6396233974785a8fd5735b9380a884f27

Last affected

023070a6396233974785a8fd5735b9380a884f27

Fixed

b64ce17852b180dfeea81cf458660be41a78974d

Database specific

{
    "cpe": "cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*",
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.4.1"
        },
        {
            "last_affected": "1.4.1"
        }
    ]
}

Affected versions

1.*

1.4.1

Database specific

vanir_signatures

[
    {
        "digest": {
            "function_hash": "48112143005334984103996638571299297107",
            "length": 583.0
        },
        "id": "CVE-2018-11743-244638a9",
        "deprecated": false,
        "target": {
            "function": "init_copy",
            "file": "src/kernel.c"
        },
        "signature_type": "Function",
        "source": "https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d",
        "signature_version": "v1"
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "295482155461672475953902644544377184591",
                "164249401958941042688244750441504177802",
                "195418266659789850486705450476988748358",
                "159697100646635414149928797440161989047"
            ]
        },
        "id": "CVE-2018-11743-c2146ee5",
        "deprecated": false,
        "target": {
            "file": "src/kernel.c"
        },
        "signature_type": "Line",
        "source": "https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d",
        "signature_version": "v1"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11743.json"

vanir_signatures_modified

"2026-07-08T17:14:51Z"