Junos OS: Invalid IP/mask learned from DHCP server might cause device control daemon (dcd) process crash

Summary

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: 12.1X46 versions prior to 12.1X46-D40 on SRX Series; 12.3X48 versions prior to 12.3X48-D20 on SRX Series; 14.1X53 versions prior to 14.1X53-D40 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100; 15.1X49 versions prior to 15.1X49-D20 on SRX Series; 15.1X53 versions prior to 15.1X53-D68 on QFX10000 Series; 15.1X53 versions prior to 15.1X53-D235 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D495 on NFX150, NFX250; 15.1X53 versions prior to 15.1X53-D590 on EX2300/EX3400; 15.1 versions prior to 15.1R7-S2.

Timeline

1. Oct 10, 2018, 6:00 PM UTCCVE published
2. Sep 16, 2024, 5:03 PM UTCRecord last updated

Affected versions

• Juniper Networks Junos OS

  From 12.1X46 · fixed in 12.1X46-D40; From 12.3X48 · fixed in 12.3X48-D20; From 15.1X49 · fixed in 15.1X49-D20

• Juniper Networks Junos OS

  From 14.1X53 · fixed in 14.1X53-D40

• Juniper Networks Junos OS

  From 15.1X53 · fixed in 15.1X53-D68

• Juniper Networks Junos OS

  From 15.1X53 · fixed in 15.1X53-D235

• Juniper Networks Junos OS

  From 15.1X53 · fixed in 15.1X53-D495

• Juniper Networks Junos OS

  From 15.1X53 · fixed in 15.1X53-D590

• Juniper Networks Junos OS

  From 15.1 · fixed in 15.1R7-S2

References 2