CVE-2024-39548: Junos OS Evolved: Receipt of specific packets in the aftmand process will lead to a memory leak
First published: Thu Jul 11 2024(Updated: )
An Uncontrolled Resource Consumption vulnerability in the aftmand process of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to consume memory resources, resulting in a Denial of Service (DoS) condition. The processes do not recover on their own and must be manually restarted. This issue affects both IPv4 and IPv6. Changes in memory usage can be monitored using the following CLI command: user@device> show system memory node <fpc slot> | grep evo-aftmann This issue affects Junos OS Evolved: * All versions before 21.2R3-S8-EVO, * 21.3 versions before 21.3R3-S5-EVO, * 21.4 versions before 21.4R3-S5-EVO, * 22.1 versions before 22.1R3-S4-EVO, * 22.2 versions before 22.2R3-S4-EVO, * 22.3 versions before 22.3R3-S3-EVO, * 22.4 versions before 22.4R2-S2-EVO, 22.4R3-EVO, * 23.2 versions before 23.2R1-S1-EVO, 23.2R2-EVO.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Networks Junos OS | <21.2R3-S8-EVO<undefined<undefined<undefined<undefined<undefined<undefined<undefined<undefined<undefined |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 21.2R3-S8-EVO, 21.3R3-S5-EVO, 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S4-EVO, 22.3R3-S3, 22.4R2-S2-EVO, 22.4R3-EVO, 23.2R1-S1-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-39548?
CVE-2024-39548 is classified as a high-severity vulnerability due to its potential to cause Denial of Service (DoS) through uncontrolled resource consumption.
How do I fix CVE-2024-39548?
To mitigate CVE-2024-39548, update Junos OS Evolved to versions 21.2R3-S8-EVO or later.
Who can exploit CVE-2024-39548?
CVE-2024-39548 can be exploited by unauthenticated network-based attackers.
What are the consequences of CVE-2024-39548?
The consequences of CVE-2024-39548 include memory resource exhaustion leading to a Denial of Service (DoS) condition.
Is there any recovery mechanism for CVE-2024-39548?
No, the affected processes associated with CVE-2024-39548 do not recover on their own after being exploited.
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