CVE-2025-12875

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-12875
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-12875.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-12875
Downstream
Published
2025-11-07T21:15:40.557Z
Modified
2025-12-04T05:09:28.018899Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A weakness has been identified in mruby 3.4.0. This vulnerability affects the function aryfillexec of the file mrbgems/mruby-array-ext/src/array.c. Executing manipulation of the argument start/length can lead to out-of-bounds write. The attack needs to be launched locally. The exploit has been made available to the public and could be exploited. This patch is called 93619f06dd378db6766666b30c08978311c7ec94. It is best practice to apply a patch to resolve this issue.

References

Affected packages

Git / github.com/makesoftwaresafe/mruby

Affected ranges

Type
GIT
Repo
https://github.com/makesoftwaresafe/mruby
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
93619f06dd378db6766666b30c08978311c7ec94

Affected versions

1.*

1.0.0
1.1.0
1.2.0
1.3.0
1.4.0
1.4.1

2.*

2.0.0
2.0.1
2.1.0
2.1.0-rc
2.1.1
2.1.1-rc
2.1.1-rc2
2.1.2
2.1.2-rc
2.1.2-rc2

3.*

3.0.0
3.0.0-preview
3.0.0-rc
3.1.0
3.1.0-rc
3.1.0-rc2

Database specific

vanir_signatures

[
    {
        "digest": {
            "function_hash": "149353290322833323444482070843092751315",
            "length": 551.0
        },
        "id": "CVE-2025-12875-93c2cc12",
        "target": {
            "function": "ary_fill_exec",
            "file": "mrbgems/mruby-array-ext/src/array.c"
        },
        "signature_type": "Function",
        "source": "https://github.com/makesoftwaresafe/mruby/commit/93619f06dd378db6766666b30c08978311c7ec94",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "digest": {
            "line_hashes": [
                "162663467173257257899948362142358013753",
                "233587596947089813545051299879213914730",
                "134627835719946752048594409195631030489"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-12875-ac070710",
        "target": {
            "file": "mrbgems/mruby-array-ext/src/array.c"
        },
        "signature_type": "Line",
        "source": "https://github.com/makesoftwaresafe/mruby/commit/93619f06dd378db6766666b30c08978311c7ec94",
        "deprecated": false,
        "signature_version": "v1"
    }
]

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