CVE-2020-36401

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Source

https://cve.org/CVERecord?id=CVE-2020-36401

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36401.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2020-36401

Downstream

Published

2021-07-01T03:15:07Z

Modified

2026-04-11T09:46:25Z

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

mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).

References

Affected packages

Git / github.com/mruby/mruby

Affected ranges

Type

GIT

Repo

https://github.com/mruby/mruby

Events

Introduced

Last Affected

1a9bdfcde5fd7c91e756747ba0565f29385115a7

Fixed

97319697c8f9f6ff27b32589947e1918e3015503

Database specific

Show details

{
    "versions":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "2.1.2"
        }
    ]
}

Affected versions

1.*

1.0.0

1.1.0

1.2.0

2.*

2.1.2

2.1.2-rc

2.1.2-rc2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36401.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "257450489011316511620633402431798244724",
                "291664367464202302924807726550456561833",
                "283430232777236476392833576910594740772",
                "916156461856379022783379629891076070"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2020-36401-0cef8eb3",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503",
        "target":  {
            "file":  "src/gc.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "73814944348713604547654280989925281376",
            "length":  326
        },
        "id":  "CVE-2020-36401-f28469e6",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503",
        "target":  {
            "file":  "src/gc.c",
            "function":  "mrb_realloc"
        }
    }
]

vanir_signatures_modified

"2026-04-11T09:46:25Z"