title: Junos OS: A malicious crafted IPv6 DHCP packet may cause the JDHCPD daemon to core
description: A Denial of Service vulnerability exists in the Juniper Networks Junos OS JDHCPD daemon which allows an attacker to core the JDHCPD daemon by sending a crafted IPv6 packet to the system. This issue is limited to systems which receives IPv6 DHCP packets on a system configured for DHCP processing using the JDHCPD daemon. This issue does not affect IPv4 DHCP packet processing. Affected releases are Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S10 on EX Series; 12.3X48 versions prior to 12.3X48-D70 on SRX Series; 14.1X53 versions prior to 14.1X53-D47 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100; 14.1X53 versions prior to 14.1X53-D130 on QFabric; 15.1 versions prior to 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D140 on SRX Series; 15.1X53 versions prior to 15.1X53-D67 on QFX10000 Series; 15.1X53 versions prior to 15.1X53-D233 on QFX5110, QFX5200; 15.1X53 versions prior to 15.1X53-D471 on NFX 150, NFX 250; 16.1 versions prior to 16.1R3-S9, 16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7; 16.2 versions prior to 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R1-S7, 17.1R2-S7, 17.1R3; 17.2 versions prior to 17.2R1-S6, 17.2R2-S4, 17.2R3; 17.3 versions prior to 17.3R1-S4, 17.3R2-S2, 17.3R3; 17.4 versions prior to 17.4R1-S3, 17.4R2.
problem types: Denial of Service
affected:
{
platforms: SRX Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 12.3X48-D70, status: affected, version: 12.3X48, versionType: custom
lessThan: 15.1X49-D140, status: affected, version: 15.1X49, versionType: custom
}
{
platforms: EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100;
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 14.1X53-D47, status: affected, version: 14.1X53, versionType: custom
}
{
platforms: QFabric System
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 14.1X53-D130, status: affected, version: 14.1X53, versionType: custom
}
{
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 15.1R4-S9, 15.1R6-S6, 15.1R7, status: affected, version: 15.1, versionType: custom
lessThan: 16.1R3-S9, 16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7, status: affected, version: 16.1, versionType: custom
lessThan: 16.2R2-S5, 16.2R3, status: affected, version: 16.2, versionType: custom
lessThan: 17.1R1-S7, 17.1R2-S7, 17.1R3, status: affected, version: 17.1, versionType: custom
lessThan: 17.2R1-S6, 17.2R2-S4, 17.2R3, status: affected, version: 17.2, versionType: custom
lessThan: 17.3R1-S4, 17.3R2-S2, 17.3R3, status: affected, version: 17.3, versionType: custom
lessThan: 17.4R1-S3, 17.4R2, status: affected, version: 17.4, versionType: custom
}
{
platforms: QFX5110, QFX5200
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 15.1X53-D233, status: affected, version: 15.1X53, versionType: custom
}
{
platforms: NFX 150, NFX 250
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 15.1X53-D471, status: affected, version: 15.1X53, versionType: custom
}
{
platforms: QFX10000 Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 15.1X53-D67, status: affected, version: 15.1X53, versionType: custom
}
{
platforms: EX Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 12.3R12-S10, status: affected, version: 12.3, versionType: custom
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
version: 3.0
]
exploits: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
solutions: The following software releases have been updated to resolve this specific issue: Junos OS 12.3R12-S10, 12.3X48-D70, 14.1X53-D130*, 14.1X53-D47, 15.1R4-S9, 15.1R6-S6, 15.1R7, 15.1X49-D140, 15.1X53-D233, 15.1X53-D471, 15.1X53-D67, 16.1R3-S9, 16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7, 16.2R2-S5, 16.2R3, 17.1R1-S7, 17.1R2-S7, 17.1R3, 17.2R1-S6, 17.2R2-S4, 17.2R3, 17.3R1-S4, 17.3R2-S2, 17.3R3, 17.4R1-S3, 17.4R2, 18.1R1, and all subsequent releases.
*Pending Publication
workarounds: There are no viable workarounds for this issue.