CVE-2018-16853

2018-11-2700:00:00

ubuntu.com

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.042

Percentile

92.2%

JSON

Samba from version 4.7.0 has a vulnerability that allows a user in a Samba
AD domain to crash the KDC when Samba is built in the non-default MIT
Kerberos configuration. With this advisory the Samba Team clarify that the
MIT Kerberos build of the Samba AD DC is considered experimental. Therefore
the Samba Team will not issue security patches for this configuration.
Additionally, Samba 4.7.12, 4.8.7 and 4.9.3 have been issued as security
releases to prevent building of the AD DC with MIT Kerberos unless
–with-experimental-mit-ad-dc is specified to the configure command.