curl — security advisory
Multiple off-by-one errors in the cURL library (libcurl) 7.11.2 through 7.15.0 allow local users to trigger a buffer overflow and cause a denial of service or bypass PHP security restrictions via certain URLs that (1) are malformed in a way that prevents a terminating null byte from being added to either a hostname or path buffer, or (2) contain a "?" separator in the hostname portion, which causes a "/" to be prepended to the resulting string.
- Products
- curl
- Affected versions
- Not specified
- Fixed versions
- 7.15.1-1
- CVEs
- CVE-2005-4077
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:47 UTC · Revision 1
Source evidence
Multiple off-by-one errors in the cURL library (libcurl) 7.11.2 through 7.15.0 allow local users to trigger a buffer overflow and cause a denial of service or bypass PHP security restrictions via certain URLs that (1) are malformed in a way that prevents a terminating null byte from being added to either a hostname or path buffer, or (2) contain a "?" separator in the hostname portion, which causes a "/" to be prepended to the resulting string.
osv:DEBIAN-CVE-2005-4077
curl
Fixed versions: 7.15.1-1
curl
Fixed versions: 7.15.1-1
curl
Fixed versions: 7.15.1-1
Complete source record
{
"id": "3e2400f9c27a41029af11f9fd19f0c3e472f03a4163f88110e06c2c6020e639e",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2005-4077",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2005-4077",
"summary": "Multiple off-by-one errors in the cURL library (libcurl) 7.11.2 through 7.15.0 allow local users to trigger a buffer overflow and cause a denial of service or bypass PHP security restrictions via certain URLs that (1) are malformed in a way that prevents a terminating null byte from being added to either a hostname or path buffer, or (2) contain a \"?\" separator in the hostname portion, which causes a \"/\" to be prepended to the resulting string.",
"evidence": "osv:DEBIAN-CVE-2005-4077",
"products": [
{
"name": {
"value": "curl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.15.1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.15.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "curl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.15.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2005-4077",
"aliases": [
"DEBIAN-CVE-2005-4077"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.15.1-1"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:deb/debian/curl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2005-4077.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.15.1-1"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:deb/debian/curl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2005-4077.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.15.1-1"
}
]
}
],
"package": {
"name": "curl",
"purl": "pkg:deb/debian/curl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2005-4077.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
}
],
"modified": "2026-10-23T03:47:40.892378198Z",
"provider": "osv",
"upstream": [
"CVE-2005-4077"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2005-4077"
]
},
"related_cves": [
{
"value": "CVE-2005-4077",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 412118,
"published_at": "2005-12-08T01:03:00+00:00"
}