CVE-2018-16877
A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.38% probability · 32th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- clusterlabs/pacemaker · canonical/ubuntu linux · fedoraproject/fedora · debian/debian linux · opensuse/leap · redhat/enterprise linux · redhat/enterprise linux eus · redhat/enterprise linux server aus · redhat/enterprise linux server tus
- Source
- secalert@redhat.com
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00012.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00034.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108042Broken Link
- https://access.redhat.com/errata/RHSA-2019:1278Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1279Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16877Issue Tracking, Patch, Third Party Advisory
- https://github.com/ClusterLabs/pacemaker/pull/1749Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00007.htmlMailing List, Third Party Advisory
- 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://security.gentoo.org/glsa/202309-09
- https://usn.ubuntu.com/3952-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00012.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00034.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108042Broken Link
- https://access.redhat.com/errata/RHSA-2019:1278Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1279Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16877Issue Tracking, Patch, Third Party Advisory
- https://github.com/ClusterLabs/pacemaker/pull/1749Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00007.htmlMailing List, Third Party Advisory
- 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://security.gentoo.org/glsa/202309-09
- https://usn.ubuntu.com/3952-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.