Description
On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Juniper Networks Junos OS
17.3 to < 17.3R3-S9affected17.4 to < 17.4R2-S11, 17.4R3-S2, 17.4R3-S3affected18.1 to < 18.1R3-S11affected18.2 to < 18.2R3-S5affected18.2X75 to < 18.2X75-D34, 18.2X75-D65affected18.3 to < 18.3R2-S4, 18.3R3-S3affected18.4 to < 18.4R2-S5, 18.4R3-S4affected19.1 to < 19.1R2-S2, 19.1R3-S2affected19.2 to < 19.2R1-S5, 19.2R2-S1, 19.2R3affected19.3 to < 19.3R2-S4, 19.3R2-S4, 19.3R3affected19.4 to < 19.4R1-S3, 19.4R2-S1, 19.4R3affected20.1 to < 20.1R1-S3, 20.1R2affected