CVE-2017-9226

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A heap out-of-bounds write or read occurs in nextstateval() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetchtoken() and fetchtokenincc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in nextstateval(), resulting in an out-of-bounds write memory corruption.

Database specific

{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "php:php",
            "extracted_events": [
                {
                    "fixed": "5.6.31"
                },
                {
                    "introduced": "7.0.0"
                },
                {
                    "fixed": "7.0.21"
                },
                {
                    "introduced": "7.1.0"
                },
                {
                    "fixed": "7.1.7"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

References

Affected packages

Git / github.com/kkos/oniguruma

Affected ranges

Type

GIT

Repo

https://github.com/kkos/oniguruma

Events

Introduced

c4ce370f5754b34321c7f87cdc6f198864221eca

Last affected

c4ce370f5754b34321c7f87cdc6f198864221eca

Fixed

b4bf968ad52afe14e60a2dc8a95d3555c543353a

Fixed

f015fbdd95f76438cd86366467bb2b39870dd7c6

Database specific

{
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "6.2.0"
        },
        {
            "last_affected": "6.2.0"
        }
    ],
    "cpe": "cpe:2.3:a:oniguruma_project:oniguruma:6.2.0:*:*:*:*:*:*:*"
}

Affected versions

6.*

6.2.0

v6.*

v6.2.0

Database specific

vanir_signatures_modified

"2026-08-04T15:57:39Z"

vanir_signatures

[
    {
        "signature_version": "v1",
        "target": {
            "file": "src/regparse.c",
            "function": "fetch_token_in_cc"
        },
        "id": "CVE-2017-9226-02f03537",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "155442029631141137222097712221615512576",
            "length": 4764.0
        },
        "source": "https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "src/regparse.c"
        },
        "id": "CVE-2017-9226-03e1ab44",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "340282246448782130687958519807593876335",
                "19691577292326266259481888258337573200",
                "285750249724714625561365284898613084533",
                "290219382971341702585136164131101210587",
                "216387815878479387550531275983473066368",
                "174739561935101457874745057573467750982",
                "311901103716194130129169947058170981802",
                "290219382971341702585136164131101210587"
            ]
        },
        "source": "https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "src/regparse.c",
            "function": "fetch_token"
        },
        "id": "CVE-2017-9226-25483da6",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "70594886040663805677780996931635258295",
            "length": 14321.0
        },
        "source": "https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "src/regparse.c"
        },
        "id": "CVE-2017-9226-4c23b0ba",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "246829258880076191915156482018696757530",
                "223947624233669634426607050500944957916",
                "160761884261585877422819118548410376246",
                "223713518639165331567966595224563676527"
            ]
        },
        "source": "https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "src/regparse.c",
            "function": "next_state_val"
        },
        "id": "CVE-2017-9226-af653b09",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "237816653384729961923500547356155140782",
            "length": 1647.0
        },
        "source": "https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-9226.json"