medium
6.9
CWE
416
Advisory Published
Updated

CVE-2024-30378: Junos OS: MX Series: bbe-smgd process crash upon execution of specific CLI commands

First published: Tue Apr 16 2024(Updated: )

A Use After Free vulnerability in command processing of Juniper Networks Junos OS on MX Series allows a local, authenticated attacker to cause the broadband edge service manager daemon (bbe-smgd) to crash upon execution of specific CLI commands, creating a Denial of Service (DoS) condition.  The process crashes and restarts automatically. When specific CLI commands are executed, the bbe-smgd daemon attempts to write into an area of memory (mgd socket) that was already closed, causing the process to crash.  This process manages and controls the configuration of broadband subscriber sessions and services.  While the process is unavailable, additional subscribers will not be able to connect to the device, causing a temporary Denial of Service condition. This issue only occurs if Graceful Routing Engine Switchover (GRES) and Subscriber Management are enabled. This issue affects Junos OS: * All versions before 20.4R3-S5, * from 21.1 before 21.1R3-S4, * from 21.2 before 21.2R3-S3, * from 21.3 before 21.3R3-S5, * from 21.4 before 21.4R3-S5, * from 22.1 before 22.1R3, * from 22.2 before 22.2R3, * from 22.3 before 22.3R2;

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=21.1
Junos OS Evolved=21.1-r1
Junos OS Evolved=21.1-r1-s1
Junos OS Evolved=21.1-r2
Junos OS Evolved=21.1-r2-s1
Junos OS Evolved=21.1-r2-s2
Junos OS Evolved=21.1-r3
Junos OS Evolved=21.1-r3-s1
Junos OS Evolved=21.1-r3-s2
Junos OS Evolved=21.1-r3-s3
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=21.3
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=21.4-r3-s4
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=22.2
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=22.3
Junos OS Evolved=22.3-r1
Junos OS Evolved=22.3-r1-s1
Junos OS Evolved=22.3-r1-s2
Any of
Juniper MX Series
Juniper MX10
Juniper MX10000
Juniper MX10003
Juniper MX10004
Juniper MX10008
Juniper MX10016
Juniper MX104
Juniper MX150
Juniper MX2008
Juniper MX2010
Juniper MX2020
Juniper MX204
Juniper MX240
Juniper MX304
Juniper MX40
Juniper MX480
Juniper MX5
Juniper MX80
Juniper MX960
Juniper JUNOS<20.4R3-S5>=undefined>=undefined>=undefined>=undefined>=undefined>=undefined>=undefined

Remedy

The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S5, 21.4R3-S5, 22.1R3, 22.2R3, 22.3R2, 22.4R1, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-30378?

    CVE-2024-30378 is classified as a Denial of Service (DoS) vulnerability.

  • How do I fix CVE-2024-30378?

    To fix CVE-2024-30378, you should upgrade to a non-vulnerable version of Junos OS beyond 20.4R3-S5.

  • Who can exploit CVE-2024-30378?

    A local, authenticated attacker can exploit CVE-2024-30378.

  • What components are affected by CVE-2024-30378?

    CVE-2024-30378 affects the broadband edge service manager daemon (bbe-smgd) on Junos OS.

  • What type of vulnerability is CVE-2024-30378?

    CVE-2024-30378 is a Use After Free vulnerability occurring during command processing.

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