CVE-2024-39541

Junos OS and Junos OS Evolved: Inconsistent information in the TE database can lead to an rpd crash

Description

An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). When conflicting information (IP or ISO addresses) about a node is added to the Traffic Engineering (TE) database and then a subsequent operation attempts to process these, rpd will crash and restart. This issue affects: Junos OS: * 22.4 versions before 22.4R3-S1, * 23.2 versions before 23.2R2,  * 23.4 versions before 23.4R1-S1, 23.4R2,  This issue does not affect Junos OS versions earlier than 22.4R1. Junos OS Evolved: * 22.4-EVO versions before 22.4R3-S2-EVO, * 23.2-EVO versions before 23.2R2-EVO, * 23.4-EVO versions before 23.4R1-S1-EVO, 23.4R2-EVO, This issue does not affect Junos OS Evolved versions earlier than before 22.4R1.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS: 22.4R3-S1, 23.2R2, 23.4R1-S1, 23.4R2, 24.2R1, and all subsequent releases; Junos OS Evolved: 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R1-S1-EVO, 23.4R2-EVO, 24.2R1-EVO, and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue.

Category

7.1
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.06%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS Evolved
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA83001 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2024-39541?
CVE-2024-39541 has been scored as a high severity vulnerability.
How to fix CVE-2024-39541?
To fix CVE-2024-39541: The following software releases have been updated to resolve this specific issue: Junos OS: 22.4R3-S1, 23.2R2, 23.4R1-S1, 23.4R2, 24.2R1, and all subsequent releases; Junos OS Evolved: 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R1-S1-EVO, 23.4R2-EVO, 24.2R1-EVO, and all subsequent releases.
Is CVE-2024-39541 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-39541 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-39541?
CVE-2024-39541 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
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