CVE-2018-9918

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-9918
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-9918.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-9918
Downstream
Related
Published
2018-04-10T18:29:00Z
Modified
2025-10-15T10:05:43.506053Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found non-name object" cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes, because nesting in direct objects is not restricted.

References

Affected packages

Git / github.com/qpdf/qpdf

Affected ranges

Type
GIT
Repo
https://github.com/qpdf/qpdf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b4d6cf6836ce025ba1811b7bbec52680c7204223

Affected versions

release-qpdf-2.*

release-qpdf-2.0
release-qpdf-2.0.1
release-qpdf-2.0.2
release-qpdf-2.0.3
release-qpdf-2.0.4
release-qpdf-2.0.5
release-qpdf-2.0.6
release-qpdf-2.1
release-qpdf-2.1.1
release-qpdf-2.1.2
release-qpdf-2.1.3
release-qpdf-2.1.4
release-qpdf-2.1.5
release-qpdf-2.1.rc1
release-qpdf-2.2.0
release-qpdf-2.2.1
release-qpdf-2.2.2
release-qpdf-2.2.3
release-qpdf-2.2.4
release-qpdf-2.2.rc1
release-qpdf-2.3.0
release-qpdf-2.3.1

release-qpdf-3.*

release-qpdf-3.0.0
release-qpdf-3.0.1
release-qpdf-3.0.2
release-qpdf-3.0.rc1

release-qpdf-4.*

release-qpdf-4.0.0
release-qpdf-4.0.1
release-qpdf-4.1.0
release-qpdf-4.2.0

release-qpdf-5.*

release-qpdf-5.0.0
release-qpdf-5.0.1
release-qpdf-5.1.0
release-qpdf-5.1.1
release-qpdf-5.1.2
release-qpdf-5.1.3
release-qpdf-5.2.0

release-qpdf-6.*

release-qpdf-6.0.0

release-qpdf-7.*

release-qpdf-7.0.0
release-qpdf-7.0.b1
release-qpdf-7.1.0
release-qpdf-7.1.1

release-qpdf-8.*

release-qpdf-8.0.0
release-qpdf-8.0.1
release-qpdf-8.0.2
release-qpdf-8.0.a1
release-qpdf-8.0.rc1
release-qpdf-8.0.rc2
release-qpdf-8.0.rc3

Database specific

vanir_signatures

[
    {
        "digest": {
            "line_hashes": [
                "181739345319500568680739432924015967377",
                "106959424485635183592864499561300455322",
                "33834260254958747297438551673392020084",
                "172637144567233369777621291369876028934",
                "16267163913427358820904854266060915297",
                "75590030690278665368514097307259967412",
                "111827253706210392211691782529734872093",
                "207665020818809464945553329770339154989",
                "304524329726436421318641378340825999579"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2018-9918-249879d0",
        "source": "https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "file": "libqpdf/QPDFObjectHandle.cc"
        },
        "signature_type": "Line"
    },
    {
        "digest": {
            "function_hash": "338132264288561279274696630611627217117",
            "length": 7243.0
        },
        "id": "CVE-2018-9918-9be83622",
        "source": "https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "QPDFObjectHandle::parseInternal",
            "file": "libqpdf/QPDFObjectHandle.cc"
        },
        "signature_type": "Function"
    }
]