CVE-2018-16877: canonical ubuntu_linux Improper Authentication
CVSS: 8.8v3.0HighModified
AliasesUBUNTU-CVE-2018-16877DEBIAN-CVE-2018-16877
Published 18-04-2019Last modified 05-08-2024
Vulnerability summary
CVE-2018-16877 is a high (CVSS 8.8) Improper Authentication vulnerability in canonical ubuntu_linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.2% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.0 (CVE.org)EPSS score
0.38%
0%100%
Low · -0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 11 · Related 7Timeline
- 18-04-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
7 scores · 4 sources · 3 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
High 8.8Preferred score · CVE.org (CNA)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HSources3 sources · 7.8–8.8
- NVDNIST8.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
-0.02 pp
From 0.40% on 18-09-2026
18-09-202618-10-2026
EPSS score0.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat4 products
- enterprise_linux8.0
- enterprise_linux_eus8.1 | 8.2 | 8.4 | 8.6
- enterprise_linux_server_aus8.2 | 8.4 | 8.6
- enterprise_linux_server_tus8.2 | 8.4 | 8.6
Debian2 products
- pacemaker< 2.0.1-3
- debian_linuxEOL9.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 18.10 | 19.04
Clusterlabs1 product
- pacemakeraffects up to and including Pacemaker-2.0.0 | ≤ 2.0.0
Fedoraproject1 product
- fedoraEOL28 | 29 | 30
Opensuse1 product
- leapEOL15.0 | 42.3
Ubuntu1 product
- pacemaker< 1.1.14-2ubuntu1.6 | < 1.1.18-0ubuntu1.1
7 vendors · 11 products
References
19 links- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00012.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00034.htmlVendor AdvisoryMailing ListThird Party Advisory
Show all 19 references
- security.gentoo.org/glsa/202309-09Vendor Advisory