CVE-2024-21613

Junos OS and Junos OS Evolved: A link flap causes patroot memory leak which leads to rpd crash

Description

A Missing Release of Memory after Effective Lifetime vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause an rpd crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when traffic engineering is enabled for OSPF or ISIS, and a link flaps, a patroot memory leak is observed. This memory leak, over time, will lead to an rpd crash and restart. The memory usage can be monitored using the below command. user@host> show task memory detail | match patroot This issue affects: Juniper Networks Junos OS * All versions earlier than 21.2R3-S3; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S3; * 22.1 versions earlier than 22.1R3; * 22.2 versions earlier than 22.2R3. Juniper Networks Junos OS Evolved * All versions earlier than 21.3R3-S5-EVO; * 21.4 versions earlier than 21.4R3-EVO; * 22.1 versions earlier than 22.1R3-EVO; * 22.2 versions earlier than 22.2R3-EVO.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS: 21.2R3-S3, 21.3R3-S5, 21.4R3-S3, 22.1R3, 22.2R3, 22.3R1 and all subsequent releases. Junos OS Evolved: 21.3R3-S5-EVO, 21.4R3-EVO, 22.1R3-EVO, 22.2R3-EVO, 22.3R1-EVO, and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
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/JSA75754 vendor advisory
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N technical description third party advisory

Frequently Asked Questions

What is the severity of CVE-2024-21613?
CVE-2024-21613 has been scored as a medium severity vulnerability.
How to fix CVE-2024-21613?
To fix CVE-2024-21613: The following software releases have been updated to resolve this specific issue: Junos OS: 21.2R3-S3, 21.3R3-S5, 21.4R3-S3, 22.1R3, 22.2R3, 22.3R1 and all subsequent releases. Junos OS Evolved: 21.3R3-S5-EVO, 21.4R3-EVO, 22.1R3-EVO, 22.2R3-EVO, 22.3R1-EVO, and all subsequent releases.
Is CVE-2024-21613 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-21613 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-2024-21613?
CVE-2024-21613 affects Juniper Networks Junos OS, Juniper Networks Junos OS Evolved.
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