Medium
libxml2 — security advisory
libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states "I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser.
- Products
- libxml2
- Affected versions
- 2.9.1+dfsg1-3ubuntu2, 2.9.1+dfsg1-3ubuntu3, 2.9.1+dfsg1-3ubuntu4, 2.9.1+dfsg1-3ubuntu4.1, 2.9.1+dfsg1-3ubuntu4.10, 2.9.1+dfsg1-3ubuntu4.11, 2.9.1+dfsg1-3ubuntu4.12, 2.9.1+dfsg1-3ubuntu4.13, 2.9.1+dfsg1-3ubuntu4.13+esm1, 2.9.1+dfsg1-3ubuntu4.13+esm10, 2.9.1+dfsg1-3ubuntu4.13+esm11, 2.9.1+dfsg1-3ubuntu4.13+esm12, 2.9.1+dfsg1-3ubuntu4.13+esm13, 2.9.1+dfsg1-3ubuntu4.13+esm2, 2.9.1+dfsg1-3ubuntu4.13+esm3, 2.9.1+dfsg1-3ubuntu4.13+esm4, 2.9.1+dfsg1-3ubuntu4.13+esm5, 2.9.1+dfsg1-3ubuntu4.13+esm6, 2.9.1+dfsg1-3ubuntu4.13+esm7, 2.9.1+dfsg1-3ubuntu4.13+esm8, 2.9.1+dfsg1-3ubuntu4.13+esm9, 2.9.1+dfsg1-3ubuntu4.2, 2.9.1+dfsg1-3ubuntu4.3, 2.9.1+dfsg1-3ubuntu4.4, 2.9.1+dfsg1-3ubuntu4.5, 2.9.1+dfsg1-3ubuntu4.6, 2.9.1+dfsg1-3ubuntu4.7, 2.9.1+dfsg1-3ubuntu4.8, 2.9.1+dfsg1-3ubuntu4.9, 2.9.2+zdfsg1-4, 2.9.2+zdfsg1-4ubuntu1, 2.9.2+zdfsg1-4ubuntu2, 2.9.2+zdfsg1-4ubuntu3, 2.9.3+dfsg1-1, 2.9.3+dfsg1-1ubuntu0.1, 2.9.3+dfsg1-1ubuntu0.2, 2.9.3+dfsg1-1ubuntu0.3, 2.9.3+dfsg1-1ubuntu0.4, 2.9.3+dfsg1-1ubuntu0.5, 2.9.3+dfsg1-1ubuntu0.6, 2.9.3+dfsg1-1ubuntu0.7, 2.9.3+dfsg1-1ubuntu0.7+esm1, 2.9.3+dfsg1-1ubuntu0.7+esm10, 2.9.3+dfsg1-1ubuntu0.7+esm11, 2.9.3+dfsg1-1ubuntu0.7+esm12, 2.9.3+dfsg1-1ubuntu0.7+esm13, 2.9.3+dfsg1-1ubuntu0.7+esm14, 2.9.3+dfsg1-1ubuntu0.7+esm2, 2.9.3+dfsg1-1ubuntu0.7+esm3, 2.9.3+dfsg1-1ubuntu0.7+esm4, 2.9.3+dfsg1-1ubuntu0.7+esm5, 2.9.3+dfsg1-1ubuntu0.7+esm6, 2.9.3+dfsg1-1ubuntu0.7+esm7, 2.9.3+dfsg1-1ubuntu0.7+esm8, 2.9.3+dfsg1-1ubuntu0.7+esm9
- Fixed versions
- Not specified
- CVEs
- CVE-2017-5969
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:37 UTC · Revision 1
Source evidence
libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states "I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser.
osv:UBUNTU-CVE-2017-5969
libxml2
Fixed versions: Not specified
libxml2
Fixed versions: Not specified
Complete source record
{
"id": "dfad7ed7ba2c80f422261c2d2c60f582832b599b5b0a055eacf94205cff74ca9",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2017-5969",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2017-5969",
"summary": "libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states \"I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser.",
"evidence": "osv:UBUNTU-CVE-2017-5969",
"products": [
{
"name": {
"value": "libxml2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.9.1+dfsg1-3ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.1",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.2",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.3",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.4",
"evidence": "/affected/0/versions"
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{
"value": "2.9.1+dfsg1-3ubuntu4.5",
"evidence": "/affected/0/versions"
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{
"value": "2.9.1+dfsg1-3ubuntu4.6",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.7",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.8",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.9",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.10",
"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
"value": "2.9.1+dfsg1-3ubuntu4.12",
"evidence": "/affected/0/versions"
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{
"value": "2.9.1+dfsg1-3ubuntu4.13",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm1",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm2",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm3",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm4",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm5",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm6",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm7",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm8",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm9",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm10",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm11",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm12",
"evidence": "/affected/0/versions"
},
{
"value": "2.9.1+dfsg1-3ubuntu4.13+esm13",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libxml2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.9.2+zdfsg1-4",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.2+zdfsg1-4ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.2+zdfsg1-4ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.2+zdfsg1-4ubuntu3",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.1",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.2",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.3",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.4",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.5",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.6",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm2",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm3",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm4",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm5",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm6",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm7",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm8",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm9",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm10",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm11",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm12",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm13",
"evidence": "/affected/1/versions"
},
{
"value": "2.9.3+dfsg1-1ubuntu0.7+esm14",
"evidence": "/affected/1/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2017-5969",
"aliases": [
"UBUNTU-CVE-2017-5969"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "negligible"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2?arch=source&distro=esm-infra-legacy%2Ftrusty",
"ecosystem": "Ubuntu:Pro:14.04:LTS"
},
"versions": [
"2.9.1+dfsg1-3ubuntu2",
"2.9.1+dfsg1-3ubuntu3",
"2.9.1+dfsg1-3ubuntu4",
"2.9.1+dfsg1-3ubuntu4.1",
"2.9.1+dfsg1-3ubuntu4.2",
"2.9.1+dfsg1-3ubuntu4.3",
"2.9.1+dfsg1-3ubuntu4.4",
"2.9.1+dfsg1-3ubuntu4.5",
"2.9.1+dfsg1-3ubuntu4.6",
"2.9.1+dfsg1-3ubuntu4.7",
"2.9.1+dfsg1-3ubuntu4.8",
"2.9.1+dfsg1-3ubuntu4.9",
"2.9.1+dfsg1-3ubuntu4.10",
"2.9.1+dfsg1-3ubuntu4.11",
"2.9.1+dfsg1-3ubuntu4.12",
"2.9.1+dfsg1-3ubuntu4.13",
"2.9.1+dfsg1-3ubuntu4.13+esm1",
"2.9.1+dfsg1-3ubuntu4.13+esm2",
"2.9.1+dfsg1-3ubuntu4.13+esm3",
"2.9.1+dfsg1-3ubuntu4.13+esm4",
"2.9.1+dfsg1-3ubuntu4.13+esm5",
"2.9.1+dfsg1-3ubuntu4.13+esm6",
"2.9.1+dfsg1-3ubuntu4.13+esm7",
"2.9.1+dfsg1-3ubuntu4.13+esm8",
"2.9.1+dfsg1-3ubuntu4.13+esm9",
"2.9.1+dfsg1-3ubuntu4.13+esm10",
"2.9.1+dfsg1-3ubuntu4.13+esm11",
"2.9.1+dfsg1-3ubuntu4.13+esm12",
"2.9.1+dfsg1-3ubuntu4.13+esm13"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-5969.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm13"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm13"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm13"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2?arch=source&distro=esm-infra-legacy%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"2.9.2+zdfsg1-4",
"2.9.2+zdfsg1-4ubuntu1",
"2.9.2+zdfsg1-4ubuntu2",
"2.9.2+zdfsg1-4ubuntu3",
"2.9.3+dfsg1-1",
"2.9.3+dfsg1-1ubuntu0.1",
"2.9.3+dfsg1-1ubuntu0.2",
"2.9.3+dfsg1-1ubuntu0.3",
"2.9.3+dfsg1-1ubuntu0.4",
"2.9.3+dfsg1-1ubuntu0.5",
"2.9.3+dfsg1-1ubuntu0.6",
"2.9.3+dfsg1-1ubuntu0.7",
"2.9.3+dfsg1-1ubuntu0.7+esm1",
"2.9.3+dfsg1-1ubuntu0.7+esm2",
"2.9.3+dfsg1-1ubuntu0.7+esm3",
"2.9.3+dfsg1-1ubuntu0.7+esm4",
"2.9.3+dfsg1-1ubuntu0.7+esm5",
"2.9.3+dfsg1-1ubuntu0.7+esm6",
"2.9.3+dfsg1-1ubuntu0.7+esm7",
"2.9.3+dfsg1-1ubuntu0.7+esm8",
"2.9.3+dfsg1-1ubuntu0.7+esm9",
"2.9.3+dfsg1-1ubuntu0.7+esm10",
"2.9.3+dfsg1-1ubuntu0.7+esm11",
"2.9.3+dfsg1-1ubuntu0.7+esm12",
"2.9.3+dfsg1-1ubuntu0.7+esm13",
"2.9.3+dfsg1-1ubuntu0.7+esm14"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-5969.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm14"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm14"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm14"
}
]
}
}
],
"modified": "2026-10-09T01:45:17.243222367Z",
"provider": "osv",
"upstream": [
"CVE-2017-5969"
],
"references": [
"https://ubuntu.com/security/CVE-2017-5969",
"https://www.cve.org/CVERecord?id=CVE-2017-5969"
]
},
"related_cves": [
{
"value": "CVE-2017-5969",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 108237,
"published_at": "2017-04-11T16:59:00+00:00"
}