CVE-2019-19204

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Source
https://cve.org/CVERecord?id=CVE-2019-19204
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19204.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-19204
Downstream
Related
Published
2019-11-21T21:15:11.577Z
Modified
2026-07-08T16:07:59.670457Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in Oniguruma 6.x before 6.9.4rc2. In the function fetchintervalquantifier (formerly known as fetchrange_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux"
        },
        {
            "extracted_events": [
                {
                    "introduced": "30"
                },
                {
                    "last_affected": "30"
                },
                {
                    "introduced": "31"
                },
                {
                    "last_affected": "31"
                }
            ],
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora"
        }
    ]
}
References

Affected packages

Git / github.com/kkos/oniguruma

Affected ranges

Type
GIT
Repo
https://github.com/kkos/oniguruma
Events
Introduced
83375e4d3480d6d9f6fcd6c2f99035e9522ceeae
Fixed
e03900b038a274ee2f1341039e9003875c11e47d
Introduced
976a9bc4d2d53923223f56d1fcc9333430cb15f6
Last affected
976a9bc4d2d53923223f56d1fcc9333430cb15f6
Fixed
681824e81bb5fc9bbd4dfbe7a07135337129537e
Database specific 
{
    "cpe": [
        "cpe:2.3:a:oniguruma_project:oniguruma:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:oniguruma_project:oniguruma:6.9.4:rc1:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "6.0.0"
        },
        {
            "fixed": "6.9.4"
        },
        {
            "introduced": "6.9.4-rc1"
        },
        {
            "last_affected": "6.9.4-rc1"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

6.*
6.9.4-rc1
v6.*
v6.9.4_rc1
v6.9.4_rc2
v6.9.4_rc3

Database specific

vanir_signatures_modified 
"2026-07-08T16:07:59Z"
vanir_signatures 
[
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "18679750778586343771741350755993589288",
                "103368106136942227172244566078932066273",
                "257727887412231991059145261695986113402",
                "99731926145027407046045989165921264745",
                "173237864390474915165548571384207574271",
                "290228417168798604629944627181754726158",
                "215947174697766211659352546659917433609",
                "174440583955296606380940663435750254051",
                "250394807291303202205505094138654332177"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/kkos/oniguruma/commit/681824e81bb5fc9bbd4dfbe7a07135337129537e",
        "id": "CVE-2019-19204-563c27e4",
        "target": {
            "file": "harnesses/encode-harness.c"
        }
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 2816.0,
            "function_hash": "267334844810435515714121622196231420596"
        },
        "signature_version": "v1",
        "source": "https://github.com/kkos/oniguruma/commit/681824e81bb5fc9bbd4dfbe7a07135337129537e",
        "id": "CVE-2019-19204-718d8559",
        "target": {
            "function": "LLVMFuzzerTestOneInput",
            "file": "harnesses/encode-harness.c"
        }
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19204.json"