CVE-2024-39516 Information

Description

An Out-of-Bounds Read vulnerability in

the routing protocol daemon (rpd) of

Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker 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.

This issue only affects systems configured in either of two ways:

      systems with BGP traceoptions enabled

      systems with BGP traffic engineering
      configured

This issue can affect iBGP and eBGP with

any address family

configured. The specific attribute involved is non-transitive and will not propagate across a network.

This issue affects:

Junos OS: 

All versions before 21.4R3-S8
22.2 before 22.2R3-S5 
22.3 before 22.3R3-S4 
22.4 before 22.4R3-S3 
23.2 before 23.2R2-S2 
23.4 before 23.4R2; 

Junos OS Evolved: 

All versions before 21.4R3-S8-EVO 
22.2-EVO before 22.2R3-S5-EVO 
22.3-EVO before 22.3R3-S4-EVO 
22.4-EVO before 22.4R3-S3-EVO 
23.2-EVO before 23.2R2-S2-EVO 
23.4-EVO before 23.4R2-EVO.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://supportportal.juniper.net/JSA88100 https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/traceoptions-edit-protocols-bgp.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5