CVE-2018-14553

gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).

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": "19.10"
                },
                {
                    "last_affected": "19.10"
                }
            ],
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
                {
                    "introduced": "32"
                },
                {
                    "last_affected": "32"
                }
            ],
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_STRING",
            "vendor_product": "opensuse:leap",
            "extracted_events": [
                {
                    "introduced": "15.1"
                },
                {
                    "last_affected": "15.1"
                }
            ],
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
            ]
        }
    ]
}

References

Affected packages

Git / github.com/libgd/libgd

Affected ranges

Type

GIT

Repo

https://github.com/libgd/libgd

Events

Introduced

2912c0a2e0a246318f41bf1997f34ce1dc3e5e42

Last affected

8255231b68889597d04d451a72438ab92a405aba

Introduced

9f0a7e7f4f0fb16d1d7936f2837a2559237edde9

Last affected

3ba6e6c857a96d06be2128fec2843b8962aa6757

Fixed

a93eac0e843148dc2d631c3ba80af17e9c8c860f

Database specific

{
    "cpe": [
        "cpe:2.3:a:libgd:libgd:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:libgd:libgd:2.1.0:-:*:*:*:*:*:*",
        "cpe:2.3:a:libgd:libgd:2.1.0:rc2:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "2.1.1"
        },
        {
            "last_affected": "2.2.5"
        },
        {
            "introduced": "2.1.0-NA"
        },
        {
            "last_affected": "2.1.0-NA"
        },
        {
            "introduced": "2.1.0-rc2"
        },
        {
            "last_affected": "2.1.0-rc2"
        }
    ]
}

Affected versions

2.*

2.1.0-NA

2.1.0-rc2

gd-2.*

gd-2.1.1

gd-2.2.0

gd-2.2.1

gd-2.2.2

gd-2.2.3

gd-2.2.4

gd-2.2.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14553.json"

vanir_signatures_modified

"2026-07-08T14:14:33Z"

vanir_signatures

[
    {
        "signature_version": "v1",
        "source": "https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f",
        "id": "CVE-2018-14553-6de27c33",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "101596286683791141158940098408006981970",
                "57027709968180314751806798402433430148",
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                "73748466374182154486630270515923290986",
                "126852781156425569605314939158155997220"
            ]
        },
        "target": {
            "file": "src/gd.c"
        },
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "source": "https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f",
        "id": "CVE-2018-14553-c9b36c9d",
        "digest": {
            "length": 2608.0,
            "function_hash": "129339956977801164261072113179957572465"
        },
        "target": {
            "function": "gdImageClone",
            "file": "src/gd.c"
        },
        "deprecated": false,
        "signature_type": "Function"
    }
]