CVE-2020-1671

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 17.4R2-S12 Juniper Networks Junos OS versions prior to 17.4R3-S3 Juniper Networks Junos OS versions prior to 18.1R3-S11 Juniper Networks Junos OS versions prior to 18.2R3-S6 Juniper Networks Junos OS versions prior to 18.2X75-D65 Juniper Networks Junos OS versions prior to 18.3R2-S4 Juniper Networks Junos OS versions prior to 18.3R3-S3 Juniper Networks Junos OS versions prior to 18.4R2-S5 Juniper Networks Junos OS versions prior to 18.4R3-S4 Juniper Networks Junos OS versions prior to 19.1R3-S2 Juniper Networks Junos OS versions prior to 19.2R1-S5 Juniper Networks Junos OS versions prior to 19.2R3 Juniper Networks Junos OS version 19.2R2 Juniper Networks Junos OS versions prior to 19.3R2-S4 Juniper Networks Junos OS versions prior to 19.3R3 Juniper Networks Junos OS versions prior to 19.4R1-S3 Juniper Networks Junos OS versions prior to 19.4R2-S2 Juniper Networks Junos OS versions prior to 19.4R3 Juniper Networks Junos OS versions prior to 20.1R1-S3 Juniper Networks Junos OS versions prior to 20.1R2

Description The issue affects Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent. A malformed DHCPv6 packet can cause the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process to crash with a core dump, resulting in the restart of the daemon. This issue only affects DHCPv6 and does not affect DHCPv4. The exploitation of this issue may allow a remote attacker to cause a core dump in response to a malformed DHCPv6 packet.

Recommendations For Juniper Networks Junos OS versions prior to 17.4R2-S12, update to version 17.4R2-S12 or later. For Juniper Networks Junos OS versions prior to 17.4R3-S3, update to version 17.4R3-S3 or later. For Juniper Networks Junos OS versions prior to 18.1R3-S11, update to version 18.1R3-S11 or later. For Juniper Networks Junos OS versions prior to 18.2R3-S6, update to version 18.2R3-S6 or later. For Juniper Networks Junos OS versions prior to 18.2X75-D65, update to version 18.2X75-D65 or later. For Juniper Networks Junos OS versions prior to 18.3R2-S4, update to version 18.3R2-S4 or later. For Juniper Networks Junos OS versions prior to 18.3R3-S3, update to version 18.3R3-S3 or later. For Juniper Networks Junos OS versions prior to 18.4R2-S5, update to version 18.4R2-S5 or later. For Juniper Networks Junos OS versions prior to 18.4R3-S4, update to version 18.4R3-S4 or later. For Juniper Networks Junos OS versions prior to 19.1R3-S2, update to version 19.1R3-S2 or later. For Juniper Networks Junos OS versions prior to 19.2R1-S5, update to version 19.2R1-S5 or later. For Juniper Networks Junos OS versions prior to 19.2R3, update to version 19.2R3 or later. For Juniper Networks Junos OS version 19.2R2, update to a later version. For Juniper Networks Junos OS versions prior to 19.3R2-S4, update to version 19.3R2-S4 or later. For Juniper Networks Junos OS versions prior to 19.3R3, update to version 19.3R3 or later. For Juniper Networks Junos OS versions prior to 19.4R1-S3, update to version 19.4R1-S3 or later. For Juniper Networks Junos OS versions prior to 19.4R2-S2, update to version 19.4R2-S2 or later. For Juniper Networks Junos OS versions prior to 19.4R3, update to version 19.4R3 or later. For Juniper Networks Junos OS versions prior to 20.1R1-S3, update to version 20.1R1-S3 or later. For Juniper Networks Junos OS versions prior to 20.1R2, update to version 20.1R2 or later.