High
Security advisory
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).
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-14553
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:15 UTC · Revision 1
Source evidence
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).
osv:CVE-2018-14553
Complete source record
{
"id": "dba5f53009750210488945a6a7cf1b7603f46f0f2acd329f24dcdce838f54351",
"url": "https://osv.dev/vulnerability/CVE-2018-14553",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-14553",
"summary": "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).",
"evidence": "osv:CVE-2018-14553",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-14553",
"aliases": [
"CVE-2018-14553"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"repo": "https://github.com/libgd/libgd",
"type": "GIT",
"events": [
{
"introduced": "2912c0a2e0a246318f41bf1997f34ce1dc3e5e42"
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{
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{
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{
"last_affected": "3ba6e6c857a96d06be2128fec2843b8962aa6757"
},
{
"fixed": "a93eac0e843148dc2d631c3ba80af17e9c8c860f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libgd:libgd:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.1"
},
{
"last_affected": "2.2.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:libgd:libgd:2.1.0:-:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-NA"
},
{
"last_affected": "2.1.0-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:libgd:libgd:2.1.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "2.1.0-rc2"
},
{
"last_affected": "2.1.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "a93eac0e843148dc2d631c3ba80af17e9c8c860f"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.1.0-NA",
"2.1.0-rc2",
"gd-2.2.5",
"gd-2.2.4",
"gd-2.2.3",
"gd-2.2.2",
"gd-2.2.1",
"gd-2.2.0",
"gd-2.1.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14553.json",
"vanir_signatures": [
{
"id": "CVE-2018-14553-6de27c33",
"digest": {
"threshold": 0.9,
"line_hashes": [
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]
},
"source": "https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f",
"target": {
"file": "src/gd.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2018-14553-c9b36c9d",
"digest": {
"length": 2608,
"function_hash": "129339956977801164261072113179957572465"
},
"source": "https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f",
"target": {
"file": "src/gd.c",
"function": "gdImageClone"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:24:24Z"
}
}
],
"modified": "2026-10-20T13:24:24.695638382Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2024/04/msg00003.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/",
"https://github.com/libgd/libgd/pull/580",
"https://lists.debian.org/debian-lts-announce/2020/02/msg00014.html",
"https://usn.ubuntu.com/4316-1/",
"https://usn.ubuntu.com/4316-2/",
"https://bugzilla.redhat.com/show_bug.cgi?id=1599032",
"https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f"
],
"provider_metadata": {
"unresolved_ranges": [
{
"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:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"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"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-14553",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387635,
"published_at": "2020-02-11T13:15:11.197+00:00"
}