Denial of service in Samba - CVE-2018-16853

 

Denial of service in Samba - CVE-2018-16853

Published: November 28, 2018


Vulnerability identifier: #VU16157
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-16853
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Samba
Affected software:
Samba

Detailed vulnerability description

The vulnerability allows a remote authenticated attacker to cause DoS condition.

The vulnerability exists due to use of experimental MIT Kerberos build of the Samba AD DC. A remote attacker can crash the KDC when Samba is built in the non-default MIT Kerberos configuration.


How to mitigate CVE-2018-16853

The vulnerability has been fixed in the version 4.7.12, 4.8.7, and 4.9.3.

Sources