high
7.1
CWE
401
Advisory Published
Updated

CVE-2024-21609: Junos OS: MX Series with SPC3, and SRX Series: If specific IPsec parameters are negotiated iked will crash due to a memory leak

First published: Fri Apr 12 2024(Updated: )

A Missing Release of Memory after Effective Lifetime vulnerability in the IKE daemon (iked) of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows an administratively adjacent attacker which is able to successfully establish IPsec tunnels to cause a Denial of Service (DoS). If specific values for the IPsec parameters local-ip, remote-ip, remote ike-id, and traffic selectors are sent from the peer, a memory leak occurs during every IPsec SA rekey which is carried out with a specific message sequence. This will eventually result in an iked process crash and restart. The iked process memory consumption can be checked using the below command:   user@host> show system processes extensive | grep iked           PID USERNAME   PRI NICE   SIZE   RES   STATE   C TIME WCPU COMMAND           56903 root       31   0     4016M 2543M CPU0   0 2:10 10.50% iked This issue affects Juniper Networks Junos OS: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S4; * 22.1 versions earlier than 22.1R3-S3; * 22.2 versions earlier than 22.2R3-S2; * 22.3 versions earlier than 22.3R3; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
All of
Any of
Junos OS Evolved<20.4
Junos OS Evolved=20.4
Junos OS Evolved=20.4-r1
Junos OS Evolved=20.4-r1-s1
Junos OS Evolved=20.4-r2
Junos OS Evolved=20.4-r2-s1
Junos OS Evolved=20.4-r2-s2
Junos OS Evolved=20.4-r3
Junos OS Evolved=20.4-r3-s1
Junos OS Evolved=20.4-r3-s2
Junos OS Evolved=20.4-r3-s3
Junos OS Evolved=20.4-r3-s4
Junos OS Evolved=20.4-r3-s5
Junos OS Evolved=20.4-r3-s6
Junos OS Evolved=20.4-r3-s7
Junos OS Evolved=20.4-r3-s8
Junos OS Evolved=21.2
Junos OS Evolved=21.2-r1
Junos OS Evolved=21.2-r1-s1
Junos OS Evolved=21.2-r1-s2
Junos OS Evolved=21.2-r2
Junos OS Evolved=21.2-r2-s1
Junos OS Evolved=21.2-r2-s2
Junos OS Evolved=21.2-r3
Junos OS Evolved=21.2-r3-s1
Junos OS Evolved=21.2-r3-s2
Junos OS Evolved=21.2-r3-s3
Junos OS Evolved=21.2-r3-s4
Junos OS Evolved=21.2-r3-s5
Junos OS Evolved=21.2-r3-s6
Junos OS Evolved=21.3
Junos OS Evolved=21.3-r1
Junos OS Evolved=21.3-r1-s1
Junos OS Evolved=21.3-r1-s2
Junos OS Evolved=21.3-r2
Junos OS Evolved=21.3-r2-s1
Junos OS Evolved=21.3-r2-s2
Junos OS Evolved=21.3-r3
Junos OS Evolved=21.3-r3-s1
Junos OS Evolved=21.3-r3-s2
Junos OS Evolved=21.3-r3-s3
Junos OS Evolved=21.3-r3-s4
Junos OS Evolved=21.4
Junos OS Evolved=21.4-r1
Junos OS Evolved=21.4-r1-s1
Junos OS Evolved=21.4-r1-s2
Junos OS Evolved=21.4-r2
Junos OS Evolved=21.4-r2-s1
Junos OS Evolved=21.4-r2-s2
Junos OS Evolved=21.4-r3
Junos OS Evolved=21.4-r3-s1
Junos OS Evolved=21.4-r3-s2
Junos OS Evolved=21.4-r3-s3
Junos OS Evolved=22.1
Junos OS Evolved=22.1-r1
Junos OS Evolved=22.1-r1-s1
Junos OS Evolved=22.1-r1-s2
Junos OS Evolved=22.1-r2
Junos OS Evolved=22.1-r2-s1
Junos OS Evolved=22.1-r2-s2
Junos OS Evolved=22.1-r3
Junos OS Evolved=22.1-r3-s1
Junos OS Evolved=22.1-r3-s2
Junos OS Evolved=22.2
Junos OS Evolved=22.2-r1
Junos OS Evolved=22.2-r1-s1
Junos OS Evolved=22.2-r1-s2
Junos OS Evolved=22.2-r2
Junos OS Evolved=22.2-r2-s1
Junos OS Evolved=22.2-r2-s2
Junos OS Evolved=22.2-r3
Junos OS Evolved=22.2-r3-s1
Junos OS Evolved=22.3
Junos OS Evolved=22.3-r1
Junos OS Evolved=22.3-r1-s1
Junos OS Evolved=22.3-r1-s2
Junos OS Evolved=22.3-r2
Junos OS Evolved=22.3-r2-s1
Junos OS Evolved=22.3-r2-s2
Junos OS Evolved=22.4
Junos OS Evolved=22.4-r1
Junos OS Evolved=22.4-r1-s1
Junos OS Evolved=22.4-r1-s2
Junos OS Evolved=22.4-r2
Junos OS Evolved=22.4-r2-s1
Junos OS Evolved=22.4-r2-s2
Junos OS Evolved=23.2
Junos OS Evolved=23.2-r1
Junos OS Evolved=23.2-r1-s1
Any of
Juniper CSRX
Juniper MX240
Juniper MX480
Juniper MX960
Juniper SRX100
Juniper SRX110
Juniper SRX1400
Juniper SRX1500
Juniper SRX1600
Juniper SRX210
Juniper SRX220
Juniper SRX2300
Juniper SRX240
Juniper SRX240H2
Juniper SRX240M
Juniper SRX300
Juniper SRX320
Juniper SRX340
Juniper SRX3400
Juniper SRX345
Juniper SRX3600
Juniper SRX380
Juniper SRX4000
Juniper SRX4100
Juniper SRX4200
Juniper SRX4300
Juniper SRX4600
Juniper SRX4700
Junos OS SRX 5000 Series
Juniper SRX5400
Juniper SRX550
Juniper SRX550
Juniper SRX550
Juniper SRX5600
Juniper SRX5800
Juniper SRX650
Juniper Networks Virtual SRX
Juniper JUNOS<20.4R3-S9<21.2R3-S7<21.3R3-S5<21.4R3-S4<22.1R3-S3<22.2R3-S2<22.3R3<22.4R3<23.2R1-S2<23.2R2

Remedy

The following software releases have been updated to resolve this specific issue: 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S4, 22.1R3-S3, 22.2R3-S2, 22.3R3, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-21609?

    CVE-2024-21609 is classified as a moderate severity vulnerability that can lead to a Denial of Service.

  • How do I fix CVE-2024-21609?

    To mitigate CVE-2024-21609, upgrade to the latest patches provided by Juniper Networks for affected versions of Junos OS.

  • Who is impacted by CVE-2024-21609?

    CVE-2024-21609 affects Juniper Networks Junos OS running on MX Series with SPC3 and SRX Series devices.

  • What type of vulnerability is CVE-2024-21609?

    CVE-2024-21609 is a Missing Release of Memory after Effective Lifetime vulnerability.

  • Can CVE-2024-21609 be exploited remotely?

    CVE-2024-21609 can be exploited by an administratively adjacent attacker with the ability to establish IPsec tunnels.

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