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AUSCERT External Security Bulletin Redistribution
2018-10 Security Bulletin: Junos OS: Invalid IP/mask learned from DHCP
server might cause the device control daemon (dcd) process
31 October 2018
AusCERT Security Bulletin Summary
Product: Juniper JunOS
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2018-0060
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2018-10 Security Bulletin: Junos OS: Invalid IP/mask learned from DHCP server
might cause the device control daemon (dcd) process crash (CVE-2018-0060)
Article ID: JSA10895
Last Updated: 30 Oct 2018
This issue affects Junos OS 12.1X46, 12.3X48, 14.1X53, 15.1, 15.1X49, 15.1X53,
16.1, 16.2, 17.1, 17.2, 17.3.
An improper input validation weakness in the device control daemon process
(dcd) of Juniper Networks Junos OS allows an attacker to cause a Denial of
Service to the dcd process and interfaces and connected clients when the Junos
device is requesting an IP address for itself.
Junos devices are not vulnerable to this issue when not configured to use DHCP.
Affected releases are Juniper Networks Junos OS:
o 12.1X46 versions prior to 12.1X46-D40 on SRX Series;
o 12.3X48 versions prior to 12.3X48-D20 on SRX Series;
o 14.1X53 versions prior to 14.1X53-D40 on EX2200/VC, EX3200, EX3300/VC,
EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500,
o 15.1X49 versions prior to 15.1X49-D20 on SRX Series;
o 15.1X53 versions prior to 15.1X53-D68 on QFX10000 Series;
o 15.1X53 versions prior to 15.1X53-D235 on QFX5200/QFX5110;
o 15.1X53 versions prior to 15.1X53-D495 on NFX150, NFX250;
o 15.1X53 versions prior to 15.1X53-D590 on EX2300/EX3400;
o 15.1 versions prior to 15.1R7-S2
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue was seen during production usage.
This issue has been assigned CVE-2018-0060.
The following software releases have been updated to resolve this specific
issue: 12.1X46-D40, 12.3X48-D20, 14.1X53-D40, 15.1X49-D20, 15.1X53-D68,
15.1X53-D235, 15.1X53-D495, 15.1X53-D590, 15.1R7-S2, 16.1R1 and all subsequent
This issue is being tracked as PR 1082817 which is visible on the Customer
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of
Engineering (EOE) or End of Life (EOL).
1. Configure the device to use static IP addresses for all interfaces.
2. Disable DHCP services.
Software Releases, patches and updates are available at https://www.juniper.net
2018-10-10: Initial publication
2018-10-31: Updated Solution section resolved in releases to read 16.1R1 and all subsequent releases. Removed all affected releases from Problem section corresponding to this change.
o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
o KB16765: In which releases are vulnerabilities fixed-
o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
o Report a Security Vulnerability - How to Contact the Juniper Networks
Security Incident Response Team
o CVE-2018-0060 at cve.mitre.org
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."
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