NTP CVE-2018-7185 Denial of Service Vulnerability

Bugtraq ID:	103339
Class:	Failure to Handle Exceptional Conditions
CVE:	CVE-2018-7185
Remote:	Yes
Local:	No
Published:	Feb 27 2018 12:00AM
Updated:	Aug 15 2018 10:00AM
Credit:	Miroslav Lichvar of Red Hat.
Vulnerable:	Oracle Solaris 11.3 NTP NTP 4.2.8 NTP NTP 4.2.6 NTP NTP 4.2.8p9 NTP NTP 4.2.8p8 NTP NTP 4.2.8p7 NTP NTP 4.2.8p6 NTP NTP 4.2.8p5 NTP NTP 4.2.8p4 NTP NTP 4.2.8p3 NTP NTP 4.2.8p2 NTP NTP 4.2.8p10 NTP NTP 4.2.8p1 NTP NTP 4.2.7p385 NTP NTP 4.2.7p366 NTP NTP 4.2.7p22 NTP NTP 4.2.7p111 NTP NTP 4.2.7p11 IBM Vios 2.2.3 IBM Vios 2.2.1 4 IBM Vios 2.2 IBM Vios 2.2.4.0 IBM Vios 2.2.3.50 IBM Vios 2.2.3.4 IBM Vios 2.2.3.3 IBM Vios 2.2.3.2 IBM Vios 2.2.3.0 IBM Vios 2.2.2.6 IBM Vios 2.2.2.5 IBM Vios 2.2.2.4 IBM Vios 2.2.2.0 IBM Vios 2.2.1.3 IBM Vios 2.2.1.1 IBM Vios 2.2.1.0 IBM Vios 2.2.0.13 IBM Vios 2.2.0.12 IBM Vios 2.2.0.11 IBM Vios 2.2.0.10 IBM Aix 7.2 IBM AIX 7.1 IBM AIX 6.1 IBM AIX 5.3
Not Vulnerable:	NTP NTP 4.2.8p11

NTP CVE-2018-7185 Denial of Service Vulnerability

NTP is prone to a denial-of-service vulnerability.

An attacker can exploit this issue to cause a denial-of-service condition, denying service to legitimate users.

NTP version 4.2.6 prior to 4.2.8p11 are vulnerable.

NTP CVE-2018-7185 Denial of Service Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

NTP CVE-2018-7185 Denial of Service Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

NTP CVE-2018-7185 Denial of Service Vulnerability

References:

• NTP Bug 3454 Unauthenticated packet can reset authenticated interleaved associat (NTP)
  
• NTP Homepage (ntp.org)
  
• Oracle Solaris Third Party Bulletin - April 2018 (Oracle)
  
• There are multiple vulnerabilities in NTPv3 and NTPv4 that affect AIX. (IBM)