CVE-2019-19203

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

0 Unknown introduced commit / All previous commits are affected

Fixed

681824e81bb5fc9bbd4dfbe7a07135337129537e

Affected versions

v5.*

v5.9.6

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

Database specific

vanir_signatures

[
    {
        "deprecated": false,
        "target": {
            "file": "harnesses/encode-harness.c"
        },
        "source": "https://github.com/kkos/oniguruma/commit/681824e81bb5fc9bbd4dfbe7a07135337129537e",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "18679750778586343771741350755993589288",
                "103368106136942227172244566078932066273",
                "257727887412231991059145261695986113402",
                "99731926145027407046045989165921264745",
                "173237864390474915165548571384207574271",
                "290228417168798604629944627181754726158",
                "215947174697766211659352546659917433609",
                "174440583955296606380940663435750254051",
                "250394807291303202205505094138654332177"
            ]
        },
        "signature_type": "Line",
        "id": "CVE-2019-19203-563c27e4",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "function": "LLVMFuzzerTestOneInput",
            "file": "harnesses/encode-harness.c"
        },
        "source": "https://github.com/kkos/oniguruma/commit/681824e81bb5fc9bbd4dfbe7a07135337129537e",
        "digest": {
            "function_hash": "267334844810435515714121622196231420596",
            "length": 2816.0
        },
        "signature_type": "Function",
        "id": "CVE-2019-19203-718d8559",
        "signature_version": "v1"
    }
]