CVE-2018-10191

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2018-10191
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10191.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-10191
Downstream
Published
2018-04-17T21:29:00.233Z
Modified
2026-07-08T14:13:44.989567Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/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, an integer overflow exists in src/vm.c::mrbvmexec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
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
1905091634a6a2925c911484434448e568330626
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.4.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*"
}

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-2018-10191.json"
vanir_signatures 
[
    {
        "target": {
            "file": "src/vm.c"
        },
        "deprecated": false,
        "source": "https://github.com/mruby/mruby/commit/1905091634a6a2925c911484434448e568330626",
        "id": "CVE-2018-10191-4f906dc6",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "318179098320671580796334812011546468836",
                "31385894504806590158479134728976733374",
                "291488986920338441806228910834754532837",
                "234188554461621141776788455322527686487",
                "12890778145267399150668197333810861362",
                "46198236631767394421020263073167925398",
                "315187527932322571882289740280446195103",
                "295169726589021630819681535583790457470"
            ]
        },
        "signature_type": "Line"
    },
    {
        "target": {
            "function": "mrb_vm_exec",
            "file": "src/vm.c"
        },
        "deprecated": false,
        "source": "https://github.com/mruby/mruby/commit/1905091634a6a2925c911484434448e568330626",
        "id": "CVE-2018-10191-9de90541",
        "signature_version": "v1",
        "digest": {
            "length": 34172.0,
            "function_hash": "105486956670678688502489234273124890437"
        },
        "signature_type": "Function"
    }
]
vanir_signatures_modified 
"2026-07-08T14:13:44Z"