CVE-2018-20650

Source
https://cve.org/CVERecord?id=CVE-2018-20650
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20650.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-20650
Downstream
Related
Published
2019-01-01T16:29:00.233Z
Modified
2026-07-08T16:40:32.983255Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach.

Database specific
{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
                {
                    "introduced": "14.04"
                },
                {
                    "last_affected": "14.04"
                },
                {
                    "introduced": "16.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "introduced": "18.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "introduced": "18.10"
                },
                {
                    "last_affected": "18.10"
                }
            ],
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                },
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                },
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux",
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux_desktop",
            "extracted_events": [
                {
                    "introduced": "7.0"
                },
                {
                    "last_affected": "7.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux_eus",
            "extracted_events": [
                {
                    "introduced": "8.1"
                },
                {
                    "last_affected": "8.1"
                },
                {
                    "introduced": "8.2"
                },
                {
                    "last_affected": "8.2"
                },
                {
                    "introduced": "8.4"
                },
                {
                    "last_affected": "8.4"
                },
                {
                    "introduced": "8.6"
                },
                {
                    "last_affected": "8.6"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux_server",
            "extracted_events": [
                {
                    "introduced": "7.0"
                },
                {
                    "last_affected": "7.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux_server_aus",
            "extracted_events": [
                {
                    "introduced": "8.2"
                },
                {
                    "last_affected": "8.2"
                },
                {
                    "introduced": "8.4"
                },
                {
                    "last_affected": "8.4"
                },
                {
                    "introduced": "8.6"
                },
                {
                    "last_affected": "8.6"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux_server_tus",
            "extracted_events": [
                {
                    "introduced": "8.2"
                },
                {
                    "last_affected": "8.2"
                },
                {
                    "introduced": "8.4"
                },
                {
                    "last_affected": "8.4"
                },
                {
                    "introduced": "8.6"
                },
                {
                    "last_affected": "8.6"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*",
                "cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "redhat:enterprise_linux_workstation",
            "extracted_events": [
                {
                    "introduced": "7.0"
                },
                {
                    "last_affected": "7.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.freedesktop.org/poppler/poppler

Affected ranges

Type
GIT
Repo
https://gitlab.freedesktop.org/poppler/poppler
Events
Database specific
{
    "cpe": "cpe:2.3:a:freedesktop:poppler:0.72.0:*:*:*:*:*:*:*",
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.72.0"
        },
        {
            "last_affected": "0.72.0"
        }
    ]
}

Affected versions

0.*
0.72.0
poppler-0.*
poppler-0.72.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20650.json"
vanir_signatures_modified
"2026-07-08T16:40:32Z"
vanir_signatures
[
    {
        "signature_version": "v1",
        "source": "https://gitlab.freedesktop.org/poppler/poppler@de0c0b8324e776f0b851485e0fc9622fc35695b7",
        "id": "CVE-2018-20650-4cf0bf9e",
        "digest": {
            "length": 812.0,
            "function_hash": "249822804868323713812360103822680906390"
        },
        "target": {
            "function": "FileSpec::FileSpec",
            "file": "poppler/FileSpec.cc"
        },
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://gitlab.freedesktop.org/poppler/poppler@de0c0b8324e776f0b851485e0fc9622fc35695b7",
        "id": "CVE-2018-20650-9594da17",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "293949540968280903538352693917672011553",
                "80900747097883303778158019435312285310",
                "21427333946226228288953424865544875497",
                "111764228469009528479060060427103681018",
                "336533272156547176625856577059739631806",
                "55015525656138811578310982402018421318",
                "292205714106596341773240197416630493705"
            ]
        },
        "target": {
            "file": "poppler/FileSpec.cc"
        },
        "deprecated": false,
        "signature_type": "Line"
    }
]