UnratedFix available
libvirt — security advisory
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
- Products
- libvirt
- Affected versions
- Not specified
- Fixed versions
- 0.9.12-5
- CVEs
- CVE-2012-4423
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:32 UTC · Revision 1
Source evidence
The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.
osv:DEBIAN-CVE-2012-4423
libvirt
Fixed versions: 0.9.12-5
libvirt
Fixed versions: 0.9.12-5
libvirt
Fixed versions: 0.9.12-5
Complete source record
{
"id": "33b8ecaff70f6d937b716691c793825dab0a51be745c9a3b431260c22c5234e9",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2012-4423",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2012-4423",
"summary": "The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a \"gap\" in the RPC dispatch table.",
"evidence": "osv:DEBIAN-CVE-2012-4423",
"products": [
{
"name": {
"value": "libvirt",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.12-5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.12-5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.12-5",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2012-4423",
"aliases": [
"DEBIAN-CVE-2012-4423"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.12-5"
}
]
}
],
"package": {
"name": "libvirt",
"purl": "pkg:deb/debian/libvirt?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4423.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.12-5"
}
]
}
],
"package": {
"name": "libvirt",
"purl": "pkg:deb/debian/libvirt?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4423.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.12-5"
}
]
}
],
"package": {
"name": "libvirt",
"purl": "pkg:deb/debian/libvirt?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-4423.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:23.246204544Z",
"provider": "osv",
"upstream": [
"CVE-2012-4423"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2012-4423"
]
},
"related_cves": [
{
"value": "CVE-2012-4423",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 416655,
"published_at": "2012-11-19T12:10:52.04+00:00"
}