First published: Fri Apr 12 2024(Updated: )
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When telemetry requests are sent to the device, and the Dynamic Rendering Daemon (drend) is suspended, the l2ald crashes and restarts due to factors outside the attackers control. Repeated occurrences of these events causes a sustained DoS condition. This issue affects: Junos OS: * All versions earlier than 20.4R3-S10; * 21.2 versions earlier than 21.2R3-S7; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S1; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2. Junos OS Evolved: * All versions earlier than 21.4R3-S5-EVO; * 22.1-EVO versions earlier than 22.1R3-S4-EVO; * 22.2-EVO versions earlier than 22.2R3-S3-EVO; * 22.3-EVO versions earlier than 22.3R3-S1-EVO; * 22.4-EVO versions earlier than 22.4R3-EVO; * 23.2-EVO versions earlier than 23.2R2-EVO.
Credit: sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Juniper Networks Junos OS | <20.4R3-S10<21.2R3-S7<21.4R3-S5<22.1R3-S4<22.2R3-S3<22.3R3-S1<22.4R3<23.2R1-S2<23.2R2 | |
Juniper Networks Junos OS Evolved | <21.4R3-S5-EVO<22.1R3-S4-EVO<22.2R3-S3-EVO<22.3R3-S1-EVO<22.4R3-EVO<23.2R2-EVO | |
Juniper JUNOS | <20.4 | |
Juniper JUNOS | =20.4 | |
Juniper JUNOS | =20.4-r1 | |
Juniper JUNOS | =20.4-r1-s1 | |
Juniper JUNOS | =20.4-r2 | |
Juniper JUNOS | =20.4-r2-s1 | |
Juniper JUNOS | =20.4-r2-s2 | |
Juniper JUNOS | =20.4-r3 | |
Juniper JUNOS | =20.4-r3-s1 | |
Juniper JUNOS | =20.4-r3-s2 | |
Juniper JUNOS | =20.4-r3-s3 | |
Juniper JUNOS | =20.4-r3-s4 | |
Juniper JUNOS | =20.4-r3-s5 | |
Juniper JUNOS | =20.4-r3-s6 | |
Juniper JUNOS | =20.4-r3-s7 | |
Juniper JUNOS | =20.4-r3-s8 | |
Juniper JUNOS | =20.4-r3-s9 | |
Juniper JUNOS | =21.2 | |
Juniper JUNOS | =21.2-r1 | |
Juniper JUNOS | =21.2-r1-s1 | |
Juniper JUNOS | =21.2-r1-s2 | |
Juniper JUNOS | =21.2-r2 | |
Juniper JUNOS | =21.2-r2-s1 | |
Juniper JUNOS | =21.2-r2-s2 | |
Juniper JUNOS | =21.2-r3 | |
Juniper JUNOS | =21.2-r3-s1 | |
Juniper JUNOS | =21.2-r3-s2 | |
Juniper JUNOS | =21.2-r3-s3 | |
Juniper JUNOS | =21.2-r3-s4 | |
Juniper JUNOS | =21.2-r3-s5 | |
Juniper JUNOS | =21.2-r3-s6 | |
Juniper JUNOS | =21.4 | |
Juniper JUNOS | =21.4-r1 | |
Juniper JUNOS | =21.4-r1-s1 | |
Juniper JUNOS | =21.4-r1-s2 | |
Juniper JUNOS | =21.4-r2 | |
Juniper JUNOS | =21.4-r2-s1 | |
Juniper JUNOS | =21.4-r2-s2 | |
Juniper JUNOS | =21.4-r3 | |
Juniper JUNOS | =21.4-r3-s1 | |
Juniper JUNOS | =21.4-r3-s2 | |
Juniper JUNOS | =21.4-r3-s3 | |
Juniper JUNOS | =21.4-r3-s4 | |
Juniper JUNOS | =22.1 | |
Juniper JUNOS | =22.1-r1 | |
Juniper JUNOS | =22.1-r1-s1 | |
Juniper JUNOS | =22.1-r1-s2 | |
Juniper JUNOS | =22.1-r2 | |
Juniper JUNOS | =22.1-r2-s1 | |
Juniper JUNOS | =22.1-r2-s2 | |
Juniper JUNOS | =22.1-r3 | |
Juniper JUNOS | =22.1-r3-s1 | |
Juniper JUNOS | =22.1-r3-s2 | |
Juniper JUNOS | =22.1-r3-s3 | |
Juniper JUNOS | =22.2 | |
Juniper JUNOS | =22.2-r1 | |
Juniper JUNOS | =22.2-r1-s1 | |
Juniper JUNOS | =22.2-r1-s2 | |
Juniper JUNOS | =22.2-r2 | |
Juniper JUNOS | =22.2-r2-s1 | |
Juniper JUNOS | =22.2-r2-s2 | |
Juniper JUNOS | =22.2-r3 | |
Juniper JUNOS | =22.2-r3-s1 | |
Juniper JUNOS | =22.2-r3-s2 | |
Juniper JUNOS | =22.3 | |
Juniper JUNOS | =22.3-r1 | |
Juniper JUNOS | =22.3-r1-s1 | |
Juniper JUNOS | =22.3-r1-s2 | |
Juniper JUNOS | =22.3-r2 | |
Juniper JUNOS | =22.3-r2-s1 | |
Juniper JUNOS | =22.3-r2-s2 | |
Juniper JUNOS | =22.3-r3 | |
Juniper JUNOS | =22.4 | |
Juniper JUNOS | =22.4-r1 | |
Juniper JUNOS | =22.4-r1-s1 | |
Juniper JUNOS | =22.4-r1-s2 | |
Juniper JUNOS | =22.4-r2 | |
Juniper JUNOS | =22.4-r2-s1 | |
Juniper JUNOS | =22.4-r2-s2 | |
Juniper JUNOS | =23.2 | |
Juniper JUNOS | =23.2-r1 | |
Juniper JUNOS | =23.2-r1-s1 | |
Juniper Junos os Evolved | <21.4 | |
Juniper Junos os Evolved | =21.4 | |
Juniper Junos os Evolved | =21.4-r1 | |
Juniper Junos os Evolved | =21.4-r1-s1 | |
Juniper Junos os Evolved | =21.4-r1-s2 | |
Juniper Junos os Evolved | =21.4-r2 | |
Juniper Junos os Evolved | =21.4-r2-s1 | |
Juniper Junos os Evolved | =21.4-r2-s2 | |
Juniper Junos os Evolved | =21.4-r3 | |
Juniper Junos os Evolved | =21.4-r3-s1 | |
Juniper Junos os Evolved | =21.4-r3-s2 | |
Juniper Junos os Evolved | =21.4-r3-s3 | |
Juniper Junos os Evolved | =21.4-r3-s4 | |
Juniper Junos os Evolved | =22.1 | |
Juniper Junos os Evolved | =22.1-r1 | |
Juniper Junos os Evolved | =22.1-r1-s1 | |
Juniper Junos os Evolved | =22.1-r1-s2 | |
Juniper Junos os Evolved | =22.1-r2 | |
Juniper Junos os Evolved | =22.1-r2-s1 | |
Juniper Junos os Evolved | =22.1-r3 | |
Juniper Junos os Evolved | =22.1-r3-s1 | |
Juniper Junos os Evolved | =22.1-r3-s2 | |
Juniper Junos os Evolved | =22.1-r3-s3 | |
Juniper Junos os Evolved | =22.2 | |
Juniper Junos os Evolved | =22.2-r1 | |
Juniper Junos os Evolved | =22.2-r1-s1 | |
Juniper Junos os Evolved | =22.2-r1-s2 | |
Juniper Junos os Evolved | =22.2-r2 | |
Juniper Junos os Evolved | =22.2-r2-s1 | |
Juniper Junos os Evolved | =22.2-r2-s2 | |
Juniper Junos os Evolved | =22.2-r3 | |
Juniper Junos os Evolved | =22.2-r3-s1 | |
Juniper Junos os Evolved | =22.2-r3-s2 | |
Juniper Junos os Evolved | =22.3 | |
Juniper Junos os Evolved | =22.3-r1 | |
Juniper Junos os Evolved | =22.3-r1-s1 | |
Juniper Junos os Evolved | =22.3-r1-s2 | |
Juniper Junos os Evolved | =22.3-r2 | |
Juniper Junos os Evolved | =22.3-r2-s1 | |
Juniper Junos os Evolved | =22.3-r2-s2 | |
Juniper Junos os Evolved | =22.3-r3 | |
Juniper Junos os Evolved | =22.4 | |
Juniper Junos os Evolved | =22.4-r1 | |
Juniper Junos os Evolved | =22.4-r1-s1 | |
Juniper Junos os Evolved | =22.4-r1-s2 | |
Juniper Junos os Evolved | =22.4-r2 | |
Juniper Junos os Evolved | =22.4-r2-s1 | |
Juniper Junos os Evolved | =22.4-r2-s2 | |
Juniper Junos os Evolved | =23.2 | |
Juniper Junos os Evolved | =23.2-r1 | |
Juniper Junos os Evolved | =23.2-r1-s1 | |
Juniper Junos os Evolved | =23.2-r1-s2 |
The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S3-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases. Junos OS: 20.4R3-S10, 21.2R3-S7, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S1, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases.
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CVE-2024-30402 has a High severity rating due to its potential to cause a Denial of Service (DoS) in affected systems.
To fix CVE-2024-30402, ensure that you upgrade to the recommended secure versions of the Junos OS or Junos OS Evolved as specified by Juniper Networks.
CVE-2024-30402 affects multiple versions of Juniper Networks Junos OS and Junos OS Evolved, including versions up to 23.2-R2.
CVE-2024-30402 requires an adjacent attacker to exploit the vulnerability, meaning remote exploitation is not possible.
The potential impact of CVE-2024-30402 includes a Denial of Service (DoS), which may disrupt service availability for affected devices.