Critical
Security advisory
curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl < 7.54.1 and curl >= 7.60.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-1000300
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:11 UTC · Revision 1
Source evidence
curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl < 7.54.1 and curl >= 7.60.0.
osv:CVE-2018-1000300
Complete source record
{
"id": "37aef87281eef8e906d36057ee7ce7ac946ed9e9232a1ffa8fe05600edbe747f",
"url": "https://osv.dev/vulnerability/CVE-2018-1000300",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-1000300",
"summary": "curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl < 7.54.1 and curl >= 7.60.0.",
"evidence": "osv:CVE-2018-1000300",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2018-1000300",
"aliases": [
"CURL-CVE-2018-1000300",
"CVE-2018-1000300"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/curl/curl",
"type": "GIT",
"events": [
{
"introduced": "54b636f14546d3fde9f9c67c3b32701d78563161"
},
{
"last_affected": "4d6bd91ab33328c6d27eddc32e064defc02dc4fd"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.54.1"
},
{
"last_affected": "7.59.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"curl-7_59_0",
"curl-7_58_0",
"curl-7_57_0",
"curl-7_56_1",
"curl-7_56_0",
"curl-7_55_1",
"curl-7_55_0",
"curl-7_54_1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000300.json"
}
}
],
"modified": "2026-10-24T10:30:36.537328445Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/201806-05",
"https://usn.ubuntu.com/3648-1/",
"https://curl.haxx.se/docs/adv_2018-82c2.html",
"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"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:17.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "17.10"
},
{
"last_affected": "17.10"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-1000300",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434003,
"published_at": "2018-05-24T13:29:01.337+00:00"
}