Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2024-21598

Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
12/04/2024
Last modified:
06/02/2025

Description

An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).<br /> <br /> If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.<br /> <br /> This issue affects Juniper Networks<br /> Junos OS:<br /> * 20.4 versions 20.4R1 and later versions earlier than 20.4R3-S9;<br /> * 21.2 versions earlier than 21.2R3-S7;<br /> * 21.3 versions earlier than 21.3R3-S5;<br /> * 21.4 versions earlier than 21.4R3-S5;<br /> * 22.1 versions earlier than 22.1R3-S4;<br /> * 22.2 versions earlier than 22.2R3-S3;<br /> * 22.3 versions earlier than 22.3R3-S1;<br /> * 22.4 versions earlier than 22.4R3;<br /> * 23.2 versions earlier than 23.2R1-S2, 23.2R2;<br /> <br /> <br /> <br /> Junos OS Evolved:<br /> * 20.4-EVO versions 20.4R1-EVO and later versions earlier than 20.4R3-S9-EVO;<br /> * 21.2-EVO versions earlier than 21.2R3-S7-EVO;<br /> * 21.3-EVO versions earlier than 21.3R3-S5-EVO;<br /> * 21.4-EVO versions earlier than 21.4R3-S5-EVO;<br /> * 22.1-EVO versions earlier than 22.1R3-S4-EVO;<br /> * 22.2-EVO versions earlier than 22.2R3-S3-EVO;<br /> * 22.3-EVO versions earlier than 22.3R3-S1-EVO;<br /> * 22.4-EVO versions earlier than 22.4R3-EVO;<br /> * 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO;<br /> <br /> <br /> <br /> This issue does not affect Juniper Networks<br /> * Junos OS versions earlier than 20.4R1;<br /> * Junos OS Evolved versions earlier than 20.4R1-EVO.<br /> <br /> <br /> <br /> This is a related but separate issue than the one described in JSA79095.

Impact

Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L CVSS v4.0 Severity and Metrics:

Base Score: 8.70 HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): Low

Base Score 4.0
8.70
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools