An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved.
References
| Link | Resource |
|---|---|
| https://kb.juniper.net/JSA11158 | Vendor Advisory |
| https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
23 Jul 2021, 19:10
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 3.3
v3 : 6.5 |
Information
Published : 2021-04-22 20:15
Updated : 2024-02-04 21:47
NVD link : CVE-2021-0267
Mitre link : CVE-2021-0267
CVE.ORG link : CVE-2021-0267
JSON object : View
Products Affected
juniper
- junos
CWE
CWE-20
Improper Input Validation