Rapid7 Vulnerability & Exploit Database

Samba CVE-2018-16853: Samba AD DC S4U2Self Crash in experimental MIT Kerberos configuration

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Samba CVE-2018-16853: Samba AD DC S4U2Self Crash in experimental MIT Kerberos configuration

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
11/28/2018
Created
03/19/2019
Added
12/04/2018
Modified
02/05/2019

Description

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.

Solution(s)

  • samba-upgrade-4_7_12
  • samba-upgrade-4_8_7
  • samba-upgrade-4_9_3

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