p11-kit — security advisory
An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.
- Products
- p11-kit
- Affected versions
- Not specified
- Fixed versions
- 0.23.22-1
- CVEs
- CVE-2020-29363
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:51 UTC · Revision 1
Source evidence
An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.
osv:DEBIAN-CVE-2020-29363
p11-kit
Fixed versions: 0.23.22-1
p11-kit
Fixed versions: 0.23.22-1
p11-kit
Fixed versions: 0.23.22-1
Complete source record
{
"id": "321118fdee50427a780f3fec0015a55891016ba6c0f7c6c49f8d182d8d0f2b15",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-29363",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-29363",
"summary": "An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.",
"evidence": "osv:DEBIAN-CVE-2020-29363",
"products": [
{
"name": {
"value": "p11-kit",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.23.22-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "p11-kit",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.23.22-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "p11-kit",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.23.22-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-29363",
"aliases": [
"DEBIAN-CVE-2020-29363"
],
"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": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.23.22-1"
}
]
}
],
"package": {
"name": "p11-kit",
"purl": "pkg:deb/debian/p11-kit?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-29363.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.23.22-1"
}
]
}
],
"package": {
"name": "p11-kit",
"purl": "pkg:deb/debian/p11-kit?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-29363.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.23.22-1"
}
]
}
],
"package": {
"name": "p11-kit",
"purl": "pkg:deb/debian/p11-kit?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-29363.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:43.721818464Z",
"provider": "osv",
"upstream": [
"CVE-2020-29363"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-29363"
]
},
"related_cves": [
{
"value": "CVE-2020-29363",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 452902,
"published_at": "2020-12-16T14:15:12.84+00:00"
}