medium
6.5
CWE
401
EPSS
0.044%
Advisory Published
Updated

CVE-2024-21613: Junos OS and Junos OS Evolved: A link flap causes patroot memory leak which leads to rpd crash

First published: Fri Jan 12 2024(Updated: )

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.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Junos=21.2
Juniper Junos=21.2-r1
Juniper Junos=21.2-r1-s1
Juniper Junos=21.2-r1-s2
Juniper Junos=21.2-r2
Juniper Junos=21.2-r2-s1
Juniper Junos=21.2-r2-s2
Juniper Junos=21.2-r3
Juniper Junos=21.2-r3-s1
Juniper Junos=21.2-r3-s2
Juniper Junos=21.3
Juniper Junos=21.3-r1
Juniper Junos=21.3-r1-s1
Juniper Junos=21.3-r1-s2
Juniper Junos=21.3-r2
Juniper Junos=21.3-r2-s1
Juniper Junos=21.3-r2-s2
Juniper Junos=21.3-r3
Juniper Junos=21.3-r3-s1
Juniper Junos=21.3-r3-s2
Juniper Junos=21.3-r3-s3
Juniper Junos=21.3-r3-s4
Juniper Junos=21.4
Juniper Junos=21.4-r1
Juniper Junos=21.4-r1-s1
Juniper Junos=21.4-r1-s2
Juniper Junos=21.4-r2
Juniper Junos=21.4-r2-s1
Juniper Junos=21.4-r2-s2
Juniper Junos=21.4-r3
Juniper Junos=21.4-r3-s1
Juniper Junos=21.4-r3-s2
Juniper Junos=22.1
Juniper Junos=22.1-r1
Juniper Junos=22.1-r1-s1
Juniper Junos=22.1-r1-s2
Juniper Junos=22.1-r2
Juniper Junos=22.1-r2-s1
Juniper Junos=22.1-r2-s2
Juniper Junos=22.2
Juniper Junos=22.2-r1
Juniper Junos=22.2-r1-s1
Juniper Junos=22.2-r1-s2
Juniper Junos=22.2-r2
Juniper Junos=22.2-r2-s1
Juniper Junos=22.2-r2-s2
Juniper Networks Junos OS=21.3
Juniper Networks Junos OS=21.3-r1
Juniper Networks Junos OS=21.3-r1-s1
Juniper Networks Junos OS=21.3-r2
Juniper Networks Junos OS=21.3-r2-s1
Juniper Networks Junos OS=21.3-r2-s2
Juniper Networks Junos OS=21.3-r3
Juniper Networks Junos OS=21.3-r3-s1
Juniper Networks Junos OS=21.3-r3-s2
Juniper Networks Junos OS=21.3-r3-s3
Juniper Networks Junos OS=21.3-r3-s4
Juniper Networks Junos OS=21.4
Juniper Networks Junos OS=21.4-r1
Juniper Networks Junos OS=21.4-r1-s1
Juniper Networks Junos OS=21.4-r1-s2
Juniper Networks Junos OS=21.4-r2
Juniper Networks Junos OS=21.4-r2-s1
Juniper Networks Junos OS=21.4-r2-s2
Juniper Networks Junos OS=22.1
Juniper Networks Junos OS=22.1-r1
Juniper Networks Junos OS=22.1-r1-s1
Juniper Networks Junos OS=22.1-r1-s2
Juniper Networks Junos OS=22.1-r2
Juniper Networks Junos OS=22.1-r2-s1
Juniper Networks Junos OS=22.2
Juniper Networks Junos OS=22.2-r1
Juniper Networks Junos OS=22.2-r1-s1
Juniper Networks Junos OS=22.2-r2
Juniper Networks Junos OS=22.2-r2-s1
Juniper Networks Junos OS=22.2-r2-s2

Remedy

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.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-21613?

    CVE-2024-21613 has a high severity rating due to its potential to cause Denial of Service by crashing the Routing Protocol Daemon.

  • How do I fix CVE-2024-21613?

    To fix CVE-2024-21613, you must upgrade to the patched versions of Junos OS as specified in the advisory.

  • Which versions of Junos OS are affected by CVE-2024-21613?

    CVE-2024-21613 affects Junos OS versions 21.2 through 22.2.

  • What kind of attack does CVE-2024-21613 facilitate?

    CVE-2024-21613 allows an unauthenticated, adjacent attacker to execute a Denial of Service (DoS) attack.

  • Is CVE-2024-21613 exploitable remotely?

    CVE-2024-21613 is not remotely exploitable, as it requires an adjacent attacker to perform the exploit.

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