High
Security advisory
A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-16877
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:04 UTC · Revision 1
Source evidence
A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation.
osv:CVE-2018-16877
Complete source record
{
"id": "333588b90d576cf61b84c86fb55851fff265bb3144e06ca1671d33b5f258ceea",
"url": "https://osv.dev/vulnerability/CVE-2018-16877",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-16877",
"summary": "A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation.",
"evidence": "osv:CVE-2018-16877",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-16877",
"aliases": [
"CVE-2018-16877"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/clusterlabs/pacemaker",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "8cf3fe749e5ba7971154f66a799dda6cb92c8aad"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:clusterlabs:pacemaker:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.0.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"Pacemaker-2.0.0",
"Pacemaker-2.0.0-rc6",
"Pacemaker-2.0.0-rc5",
"Pacemaker-2.0.0-rc4",
"Pacemaker-2.0.0-rc3",
"Pacemaker-2.0.0-rc2",
"Pacemaker-2.0.0-rc1",
"Pacemaker-1.1.14-rc4",
"Pacemaker-1.1.13-rc1",
"Pacemaker-1.1.11-rc3",
"Pacemaker-1.1.11-rc1",
"Pacemaker-1.1.10",
"Pacemaker-1.1.10-rc7",
"Pacemaker-1.1.10-rc6",
"Pacemaker-1.1.10-rc5",
"Pacemaker-1.1.10-rc4",
"Pacemaker-1.1.10-rc3",
"Pacemaker-1.1.10-rc2",
"Pacemaker-1.1.10-rc1",
"Pacemaker-1.1.9",
"RHEL6.4",
"Pacemaker-1.1.8",
"Pacemaker-1.1.7",
"RHEL6.3",
"Pacemaker-1.1.6.1",
"Pacemaker-1.1.6",
"Pacemaker-0.6.5",
"Pacemaker-0.6.3",
"Pacemaker-0.6.2",
"Pacemaker-0.6.1",
"Pacemaker-0.6.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16877.json"
}
}
],
"modified": "2026-10-20T10:49:52.309457540Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GCWFO7GL6MBU6C4BGFO3P6L77DIBBF3/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FY4M4RMIG2POKC6OOFQODGKPRYXHET2F/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HR6QUYGML735EI3HEEHYRDW7EG73BUH2/",
"https://access.redhat.com/errata/RHSA-2019:1278",
"https://access.redhat.com/errata/RHSA-2019:1279",
"https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html",
"https://security.gentoo.org/glsa/202309-09",
"https://usn.ubuntu.com/3952-1/",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16877",
"https://github.com/ClusterLabs/pacemaker/pull/1749"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "18.10"
},
{
"last_affected": "18.10"
},
{
"introduced": "19.04"
},
{
"last_affected": "19.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "28"
},
{
"last_affected": "28"
},
{
"introduced": "29"
},
{
"last_affected": "29"
},
{
"introduced": "30"
},
{
"last_affected": "30"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.0"
},
{
"last_affected": "15.0"
},
{
"introduced": "42.3"
},
{
"last_affected": "42.3"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_eus",
"extracted_events": [
{
"range": [
{
"introduced": "8.1"
},
{
"last_affected": "8.1"
},
{
"introduced": "8.2"
},
{
"last_affected": "8.2"
},
{
"introduced": "8.4"
},
{
"last_affected": "8.4"
},
{
"introduced": "8.6"
},
{
"last_affected": "8.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_aus",
"extracted_events": [
{
"range": [
{
"introduced": "8.2"
},
{
"last_affected": "8.2"
},
{
"introduced": "8.4"
},
{
"last_affected": "8.4"
},
{
"introduced": "8.6"
},
{
"last_affected": "8.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_tus",
"extracted_events": [
{
"range": [
{
"introduced": "8.2"
},
{
"last_affected": "8.2"
},
{
"introduced": "8.4"
},
{
"last_affected": "8.4"
},
{
"introduced": "8.6"
},
{
"last_affected": "8.6"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-16877",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380896,
"published_at": "2019-04-18T18:29:00.297+00:00"
}