Description
The Juniper Enhanced jdhcpd daemon may experience high CPU utilization, or crash and restart upon receipt of an invalid IPv6 UDP packet. Both high CPU utilization and repeated crashes of the jdhcpd daemon can result in a denial of service as DHCP service is interrupted. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 14.1X53 prior to 14.1X53-D12, 14.1X53-D38, 14.1X53-D40 on QFX, EX, QFabric System; 15.1 prior to 15.1F2-S18, 15.1R4 on all products and platforms; 15.1X49 prior to 15.1X49-D80 on SRX; 15.1X53 prior to 15.1X53-D51, 15.1X53-D60 on NFX, QFX, EX.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://kb.juniper.net/JSA10800
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038899
Scores
CVSS v3
7.5
EPSS
0.0045
EPSS Percentile
63.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-400
Status
published
Products (8)
juniper/junos
14.1x53 (4 CPE variants)
juniper/junos
15.1 (8 CPE variants)
juniper/junos
15.1x49 (13 CPE variants)
juniper/junos
15.1x53 (12 CPE variants)
Juniper Networks/Junos OS
14.1X53 prior to 14.1X53-D12, 14.1X53-D38, 14.1X53-D40
Juniper Networks/Junos OS
15.1 prior to 15.1F2-S18, 15.1R4
Juniper Networks/Junos OS
15.1X49 prior to 15.1X49-D80
Juniper Networks/Junos OS
15.1X53 prior to 15.1X53-D51, 15.1X53-D60
Published
Jul 17, 2017
Tracked Since
Feb 18, 2026