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.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Junos | Juniper | 17.3 (including) | 17.3 (including) |
Junos | Juniper | 17.3-r1-s1 (including) | 17.3-r1-s1 (including) |
Junos | Juniper | 17.3-r2 (including) | 17.3-r2 (including) |
Junos | Juniper | 17.3-r2-s1 (including) | 17.3-r2-s1 (including) |
Junos | Juniper | 17.3-r2-s2 (including) | 17.3-r2-s2 (including) |
Junos | Juniper | 17.3-r2-s3 (including) | 17.3-r2-s3 (including) |
Junos | Juniper | 17.3-r2-s4 (including) | 17.3-r2-s4 (including) |
Junos | Juniper | 17.3-r2-s5 (including) | 17.3-r2-s5 (including) |
Junos | Juniper | 17.3-r3 (including) | 17.3-r3 (including) |
Junos | Juniper | 17.3-r3-s1 (including) | 17.3-r3-s1 (including) |
Junos | Juniper | 17.3-r3-s2 (including) | 17.3-r3-s2 (including) |
Junos | Juniper | 17.3-r3-s3 (including) | 17.3-r3-s3 (including) |
Junos | Juniper | 17.3-r3-s4 (including) | 17.3-r3-s4 (including) |
Junos | Juniper | 17.3-r3-s7 (including) | 17.3-r3-s7 (including) |
Junos | Juniper | 17.3-r3-s8 (including) | 17.3-r3-s8 (including) |
Junos | Juniper | 17.4 (including) | 17.4 (including) |
Junos | Juniper | 17.4-r1 (including) | 17.4-r1 (including) |
Junos | Juniper | 17.4-r1-s1 (including) | 17.4-r1-s1 (including) |
Junos | Juniper | 17.4-r1-s2 (including) | 17.4-r1-s2 (including) |
Junos | Juniper | 17.4-r1-s4 (including) | 17.4-r1-s4 (including) |
Junos | Juniper | 17.4-r1-s5 (including) | 17.4-r1-s5 (including) |
Junos | Juniper | 17.4-r1-s6 (including) | 17.4-r1-s6 (including) |
Junos | Juniper | 17.4-r1-s7 (including) | 17.4-r1-s7 (including) |
Junos | Juniper | 17.4-r2 (including) | 17.4-r2 (including) |
Junos | Juniper | 17.4-r2-s1 (including) | 17.4-r2-s1 (including) |
Junos | Juniper | 17.4-r2-s10 (including) | 17.4-r2-s10 (including) |
Junos | Juniper | 17.4-r2-s2 (including) | 17.4-r2-s2 (including) |
Junos | Juniper | 17.4-r2-s3 (including) | 17.4-r2-s3 (including) |
Junos | Juniper | 17.4-r2-s4 (including) | 17.4-r2-s4 (including) |
Junos | Juniper | 17.4-r2-s5 (including) | 17.4-r2-s5 (including) |
Junos | Juniper | 17.4-r2-s6 (including) | 17.4-r2-s6 (including) |
Junos | Juniper | 17.4-r2-s7 (including) | 17.4-r2-s7 (including) |
Junos | Juniper | 17.4-r2-s8 (including) | 17.4-r2-s8 (including) |
Junos | Juniper | 17.4-r2-s9 (including) | 17.4-r2-s9 (including) |
Junos | Juniper | 17.4-r3 (including) | 17.4-r3 (including) |
Junos | Juniper | 17.4-r3-s1 (including) | 17.4-r3-s1 (including) |
Junos | Juniper | 17.4-r3-s2 (including) | 17.4-r3-s2 (including) |
Junos | Juniper | 18.1 (including) | 18.1 (including) |
Junos | Juniper | 18.1-r1 (including) | 18.1-r1 (including) |
Junos | Juniper | 18.1-r2 (including) | 18.1-r2 (including) |
Junos | Juniper | 18.1-r2-s1 (including) | 18.1-r2-s1 (including) |
Junos | Juniper | 18.1-r2-s2 (including) | 18.1-r2-s2 (including) |
Junos | Juniper | 18.1-r2-s4 (including) | 18.1-r2-s4 (including) |
Junos | Juniper | 18.1-r3 (including) | 18.1-r3 (including) |
Junos | Juniper | 18.1-r3-s1 (including) | 18.1-r3-s1 (including) |
Junos | Juniper | 18.1-r3-s10 (including) | 18.1-r3-s10 (including) |
Junos | Juniper | 18.1-r3-s2 (including) | 18.1-r3-s2 (including) |
Junos | Juniper | 18.1-r3-s3 (including) | 18.1-r3-s3 (including) |
Junos | Juniper | 18.1-r3-s4 (including) | 18.1-r3-s4 (including) |
Junos | Juniper | 18.1-r3-s6 (including) | 18.1-r3-s6 (including) |
Junos | Juniper | 18.1-r3-s7 (including) | 18.1-r3-s7 (including) |
Junos | Juniper | 18.1-r3-s8 (including) | 18.1-r3-s8 (including) |
Junos | Juniper | 18.1-r3-s9 (including) | 18.1-r3-s9 (including) |
Junos | Juniper | 18.2 (including) | 18.2 (including) |
Junos | Juniper | 18.2-r1 (including) | 18.2-r1 (including) |
Junos | Juniper | 18.2-r1-s3 (including) | 18.2-r1-s3 (including) |
Junos | Juniper | 18.2-r1-s4 (including) | 18.2-r1-s4 (including) |
Junos | Juniper | 18.2-r1-s5 (including) | 18.2-r1-s5 (including) |
Junos | Juniper | 18.2-r2 (including) | 18.2-r2 (including) |
Junos | Juniper | 18.2-r2-s1 (including) | 18.2-r2-s1 (including) |
Junos | Juniper | 18.2-r2-s2 (including) | 18.2-r2-s2 (including) |
Junos | Juniper | 18.2-r2-s3 (including) | 18.2-r2-s3 (including) |
Junos | Juniper | 18.2-r2-s4 (including) | 18.2-r2-s4 (including) |
Junos | Juniper | 18.2-r2-s5 (including) | 18.2-r2-s5 (including) |
Junos | Juniper | 18.2-r2-s6 (including) | 18.2-r2-s6 (including) |
Junos | Juniper | 18.2-r3 (including) | 18.2-r3 (including) |
Junos | Juniper | 18.2-r3-s1 (including) | 18.2-r3-s1 (including) |
Junos | Juniper | 18.2-r3-s2 (including) | 18.2-r3-s2 (including) |
Junos | Juniper | 18.2-r3-s3 (including) | 18.2-r3-s3 (including) |
Junos | Juniper | 18.2-r3-s4 (including) | 18.2-r3-s4 (including) |
Junos | Juniper | 18.3 (including) | 18.3 (including) |
Junos | Juniper | 18.3-r1 (including) | 18.3-r1 (including) |
Junos | Juniper | 18.3-r1-s1 (including) | 18.3-r1-s1 (including) |
Junos | Juniper | 18.3-r1-s2 (including) | 18.3-r1-s2 (including) |
Junos | Juniper | 18.3-r1-s3 (including) | 18.3-r1-s3 (including) |
Junos | Juniper | 18.3-r1-s5 (including) | 18.3-r1-s5 (including) |
Junos | Juniper | 18.3-r1-s6 (including) | 18.3-r1-s6 (including) |
Junos | Juniper | 18.3-r2 (including) | 18.3-r2 (including) |
Junos | Juniper | 18.3-r2-s1 (including) | 18.3-r2-s1 (including) |
Junos | Juniper | 18.3-r2-s2 (including) | 18.3-r2-s2 (including) |
Junos | Juniper | 18.3-r2-s3 (including) | 18.3-r2-s3 (including) |
Junos | Juniper | 18.3-r2-s4 (including) | 18.3-r2-s4 (including) |
Junos | Juniper | 18.3-r3 (including) | 18.3-r3 (including) |
Junos | Juniper | 18.3-r3-s1 (including) | 18.3-r3-s1 (including) |
Junos | Juniper | 18.3-r3-s2 (including) | 18.3-r3-s2 (including) |
Junos | Juniper | 18.4 (including) | 18.4 (including) |
Junos | Juniper | 18.4-r1 (including) | 18.4-r1 (including) |
Junos | Juniper | 18.4-r1-s1 (including) | 18.4-r1-s1 (including) |
Junos | Juniper | 18.4-r1-s2 (including) | 18.4-r1-s2 (including) |
Junos | Juniper | 18.4-r1-s5 (including) | 18.4-r1-s5 (including) |
Junos | Juniper | 18.4-r1-s6 (including) | 18.4-r1-s6 (including) |
Junos | Juniper | 18.4-r2 (including) | 18.4-r2 (including) |
Junos | Juniper | 18.4-r2-s1 (including) | 18.4-r2-s1 (including) |
Junos | Juniper | 18.4-r2-s2 (including) | 18.4-r2-s2 (including) |
Junos | Juniper | 18.4-r2-s3 (including) | 18.4-r2-s3 (including) |
Junos | Juniper | 18.4-r2-s4 (including) | 18.4-r2-s4 (including) |
Junos | Juniper | 18.4-r3 (including) | 18.4-r3 (including) |
Junos | Juniper | 18.4-r3-s1 (including) | 18.4-r3-s1 (including) |
Junos | Juniper | 18.4-r3-s2 (including) | 18.4-r3-s2 (including) |
Junos | Juniper | 18.4-r3-s3 (including) | 18.4-r3-s3 (including) |
Junos | Juniper | 19.1 (including) | 19.1 (including) |
Junos | Juniper | 19.1-r1 (including) | 19.1-r1 (including) |
Junos | Juniper | 19.1-r1-s1 (including) | 19.1-r1-s1 (including) |
Junos | Juniper | 19.1-r1-s2 (including) | 19.1-r1-s2 (including) |
Junos | Juniper | 19.1-r1-s3 (including) | 19.1-r1-s3 (including) |
Junos | Juniper | 19.1-r1-s4 (including) | 19.1-r1-s4 (including) |
Junos | Juniper | 19.1-r2 (including) | 19.1-r2 (including) |
Junos | Juniper | 19.1-r3 (including) | 19.1-r3 (including) |
Junos | Juniper | 19.1-r3-s1 (including) | 19.1-r3-s1 (including) |
Junos | Juniper | 19.2 (including) | 19.2 (including) |
Junos | Juniper | 19.2-r1 (including) | 19.2-r1 (including) |
Junos | Juniper | 19.2-r1-s1 (including) | 19.2-r1-s1 (including) |
Junos | Juniper | 19.2-r1-s2 (including) | 19.2-r1-s2 (including) |
Junos | Juniper | 19.2-r1-s3 (including) | 19.2-r1-s3 (including) |
Junos | Juniper | 19.2-r1-s4 (including) | 19.2-r1-s4 (including) |
Junos | Juniper | 19.3 (including) | 19.3 (including) |
Junos | Juniper | 19.3-r1 (including) | 19.3-r1 (including) |
Junos | Juniper | 19.3-r1-s1 (including) | 19.3-r1-s1 (including) |
Junos | Juniper | 19.3-r2 (including) | 19.3-r2 (including) |
Junos | Juniper | 19.3-r2-s1 (including) | 19.3-r2-s1 (including) |
Junos | Juniper | 19.3-r2-s2 (including) | 19.3-r2-s2 (including) |
Junos | Juniper | 19.3-r2-s3 (including) | 19.3-r2-s3 (including) |
Junos | Juniper | 19.4-r1 (including) | 19.4-r1 (including) |
Junos | Juniper | 19.4-r1-s1 (including) | 19.4-r1-s1 (including) |
Junos | Juniper | 19.4-r1-s2 (including) | 19.4-r1-s2 (including) |
Junos | Juniper | 19.4-r2 (including) | 19.4-r2 (including) |
Junos | Juniper | 20.1-r1 (including) | 20.1-r1 (including) |
Junos | Juniper | 20.1-r1-s1 (including) | 20.1-r1-s1 (including) |
Junos | Juniper | 20.1-r1-s2 (including) | 20.1-r1-s2 (including) |
Input validation is a frequently-used technique for checking potentially dangerous inputs in order to ensure that the inputs are safe for processing within the code, or when communicating with other components. Input can consist of:
Data can be simple or structured. Structured data can be composed of many nested layers, composed of combinations of metadata and raw data, with other simple or structured data. Many properties of raw data or metadata may need to be validated upon entry into the code, such as:
Implied or derived properties of data must often be calculated or inferred by the code itself. Errors in deriving properties may be considered a contributing factor to improper input validation.