Description
An Improper Input Validation vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). If a device is configured as DHCPv6 local server and persistent storage is enabled, jdhcpd will crash when receiving a specific DHCPv6 message. This issue affects: Juniper Networks Junos OS All versions prior to 15.1R7-S11; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Juniper Networks | Junos OS | unspecified – < 15.1R7-S11, 18.4 – < 18.4R3-S9, 19.1 – < 19.1R2-S3, 19.1R3-S7, 19.2 – < 19.2R1-S8, 19.2R3-S3, 19.4 – < 19.4R3-S5, 20.1 – < 20.1R3-S1, 20.2 – < 20.2R3-S2, 20.3 – < 20.3R3-S1, 20.4 – < 20.4R3, 21.1 – < 21.1R2, 21.2 – < 21.2R2 | 15.1R7-S11 |