CVE-2019-19203

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2019-19203
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19203.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-19203
Downstream
Related
Published
2019-11-21T21:15:11.497Z
Modified
2026-03-10T22:35:10.496692Z
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 gb18030mbcenclen in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string. This leads to a heap-based buffer over-read.

References

Affected packages

Git / github.com/kkos/oniguruma

Affected ranges

Type
GIT
Repo
https://github.com/kkos/oniguruma
Events
Introduced
83375e4d3480d6d9f6fcd6c2f99035e9522ceeae
Fixed
e03900b038a274ee2f1341039e9003875c11e47d
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
976a9bc4d2d53923223f56d1fcc9333430cb15f6
Fixed
681824e81bb5fc9bbd4dfbe7a07135337129537e
Database specific 
{
    "versions": [
        {
            "introduced": "6.0.0"
        },
        {
            "fixed": "6.9.4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "6.9.4-rc1"
        }
    ]
}

Affected versions

v6.*
v6.0.0
v6.1.0
v6.1.1
v6.1.2
v6.1.3
v6.2.0
v6.3.0
v6.4.0
v6.5.0
v6.6.0
v6.6.1
v6.7.0
v6.7.1
v6.8.0
v6.8.1
v6.8.2
v6.9.0
v6.9.1
v6.9.2
v6.9.2_rc1
v6.9.2_rc2
v6.9.2_rc3
v6.9.3
v6.9.4_rc1
v6.9.4_rc2
v6.9.4_rc3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19203.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "18679750778586343771741350755993589288",
                "103368106136942227172244566078932066273",
                "257727887412231991059145261695986113402",
                "99731926145027407046045989165921264745",
                "173237864390474915165548571384207574271",
                "290228417168798604629944627181754726158",
                "215947174697766211659352546659917433609",
                "174440583955296606380940663435750254051",
                "250394807291303202205505094138654332177"
            ]
        },
        "source": "https://github.com/kkos/oniguruma/commit/681824e81bb5fc9bbd4dfbe7a07135337129537e",
        "signature_type": "Line",
        "id": "CVE-2019-19203-563c27e4",
        "target": {
            "file": "harnesses/encode-harness.c"
        }
    },
    {
        "deprecated": false,
        "signature_version": "v1",
        "digest": {
            "function_hash": "267334844810435515714121622196231420596",
            "length": 2816.0
        },
        "source": "https://github.com/kkos/oniguruma/commit/681824e81bb5fc9bbd4dfbe7a07135337129537e",
        "signature_type": "Function",
        "id": "CVE-2019-19203-718d8559",
        "target": {
            "file": "harnesses/encode-harness.c",
            "function": "LLVMFuzzerTestOneInput"
        }
    }
]
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "30"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    }
]