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ubuntucveUbuntu.comUB:CVE-2018-16888
HistoryJan 14, 2019 - 12:00 a.m.

CVE-2018-16888

2019-01-1400:00:00
ubuntu.com
ubuntu.com
8

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

5.3%

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.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchsystemd< 229-4ubuntu21.27UNKNOWN

4.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

5.3%