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

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CVE-2025-21600

Severity CVSS v4.0:
HIGH
Type:
CWE-125 Out-of-bounds Read
Publication date:
09/01/2025
Last modified:
27/01/2025

Description

An Out-of-Bounds Read vulnerability in<br /> <br /> the routing protocol daemon (rpd) of <br /> <br /> Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.<br /> <br /> <br /> <br /> This issue only affects systems configured in<br /> either of two ways:<br /> <br /> <br /> <br /> * systems with BGP traceoptions enabled<br /> <br /> * systems with BGP family traffic-engineering (BGP-LS)<br /> configured<br /> <br /> <br /> and can be exploited from a directly connected and configured BGP peer. <br /> <br /> This issue affects iBGP and eBGP <br /> <br /> with <br /> <br /> any address family<br /> <br /> configured, and both IPv4 and IPv6 are affected by this vulnerability.<br /> <br /> This issue affects:<br /> <br /> Junos OS: <br /> <br /> <br /> <br /> * <br /> <br /> from 21.4 before 21.4R3-S9, <br /> * from 22.2 before 22.2R3-S5, <br /> * from 22.3 before 22.3R3-S4, <br /> * from 22.4 before 22.4R3-S5, <br /> * from 23.2 before 23.2R2-S3, <br /> * from 23.4 before 23.4R2-S3, <br /> * from 24.2 before 24.2R1-S2, 24.2R2; <br /> <br /> <br /> <br /> <br /> Junos OS Evolved: <br /> <br /> <br /> <br /> * from 21.4-EVO before 21.4R3-S9-EVO, <br /> * from 22.2-EVO before 22.2R3-S5-EVO, <br /> * from 22.3-EVO before 22.3R3-S4-EVO, <br /> * from 22.4-EVO before 22.4R3-S5-EVO, <br /> * from 23.2-EVO before 23.2R2-S3-EVO, <br /> * from 23.4-EVO before 23.4R2-S2-EVO, <br /> * from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO.<br /> <br /> <br /> This issue does not affect versions of Junos OS prior to 21.3R1.<br /> <br /> <br /> This issue does not affect versions of Junos OS Evolved prior to 21.3R1-EVO.<br /> <br /> <br /> <br /> This is a similar, but different vulnerability than the issue reported as CVE-2024-39516.

Impact

Vector 4.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:A/V:C/RE:M/U:Green CVSS v4.0 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:A/V:C/RE:M/U:Green

Attack Vector (AV): Adjacent
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
Automatable (AU): No
Recovery (R): Automatic
Value Density (V): Concentrated
Vulnerability Response Effort (RE): Moderate
Provider Urgency (U): Green

Base Score 4.0
7.10
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Adjacent
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
6.50
Severity 3.x
MEDIUM

References to Advisories, Solutions, and Tools