UnratedFix available
expat, libxmltok and 1 more products — security advisory
The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.
- Products
- expat, libxmltok, xmlrpc-c
- Affected versions
- 1.2-4, 1.2-4.1, 1.2-4.1~exp1, 1.2-4.2
- Fixed versions
- 1.16.33-3.2, 2.1.0~beta3-1
- CVEs
- CVE-2012-0876
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:32 UTC · Revision 1
Source evidence
The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.
osv:DEBIAN-CVE-2012-0876
expat
Fixed versions: 2.1.0~beta3-1
expat
Fixed versions: 2.1.0~beta3-1
expat
Fixed versions: 2.1.0~beta3-1
libxmltok
Fixed versions: Not specified
xmlrpc-c
Fixed versions: 1.16.33-3.2
xmlrpc-c
Fixed versions: 1.16.33-3.2
xmlrpc-c
Fixed versions: 1.16.33-3.2
Complete source record
{
"id": "ad44b0c93c88db5633be33fd7ba95c615d7f89123e3afa27c7ebb87635cd7ccd",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2012-0876",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2012-0876",
"summary": "The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.",
"evidence": "osv:DEBIAN-CVE-2012-0876",
"products": [
{
"name": {
"value": "expat",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.0~beta3-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "expat",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.0~beta3-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "expat",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.0~beta3-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libxmltok",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.2-4",
"evidence": "/affected/3/versions"
},
{
"value": "1.2-4.1",
"evidence": "/affected/3/versions"
},
{
"value": "1.2-4.1~exp1",
"evidence": "/affected/3/versions"
},
{
"value": "1.2-4.2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "xmlrpc-c",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.16.33-3.2",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xmlrpc-c",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.16.33-3.2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xmlrpc-c",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.16.33-3.2",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2012-0876",
"aliases": [
"DEBIAN-CVE-2012-0876"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0~beta3-1"
}
]
}
],
"package": {
"name": "expat",
"purl": "pkg:deb/debian/expat?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0~beta3-1"
}
]
}
],
"package": {
"name": "expat",
"purl": "pkg:deb/debian/expat?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0~beta3-1"
}
]
}
],
"package": {
"name": "expat",
"purl": "pkg:deb/debian/expat?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libxmltok",
"purl": "pkg:deb/debian/libxmltok?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.2-4",
"1.2-4.1",
"1.2-4.1~exp1",
"1.2-4.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.33-3.2"
}
]
}
],
"package": {
"name": "xmlrpc-c",
"purl": "pkg:deb/debian/xmlrpc-c?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.33-3.2"
}
]
}
],
"package": {
"name": "xmlrpc-c",
"purl": "pkg:deb/debian/xmlrpc-c?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.33-3.2"
}
]
}
],
"package": {
"name": "xmlrpc-c",
"purl": "pkg:deb/debian/xmlrpc-c?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-0876.json"
},
"ecosystem_specific": {
"urgency": "low"
}
}
],
"modified": "2026-10-23T17:47:23.642947452Z",
"provider": "osv",
"upstream": [
"CVE-2012-0876"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2012-0876"
]
},
"related_cves": [
{
"value": "CVE-2012-0876",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 416680,
"published_at": "2012-07-03T19:55:02.21+00:00"
}