National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-16888 Detail

Current Description

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.7 MEDIUM
Vector: AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 1.0


Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 1.9 LOW
Vector: (AV:L/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:2091
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16888 Issue Tracking Patch Third Party Advisory
https://lists.apache.org/thread.html/5960a34a524848cd722fd7ab7e2227eac10107b0f90d9d1e9c3caa74@%3Cuser.cassandra.apache.org%3E
https://security.netapp.com/advisory/ntap-20190307-0007/ Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Controls (CWE-264)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:freedesktop:systemd:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
237

Configuration 2 ( hide )
 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:a:netapp:active_iq_performance_analytics_services:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-16888
NVD Published Date:
01/14/2019
NVD Last Modified:
08/06/2019