CVE-2024-47496

Junos OS: MX Series: The PFE will crash on running specific command

Description

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a local, low-privileged attacker to cause a Denial-of-Service (DoS). When a specific command is executed, the pfe crashes. This will cause traffic forwarding to be interrupted until the system self-recovers. Repeated execution will create a sustained DoS condition. This issue only affects MX Series devices with Line cards MPC1-MPC9. This issue affects: Junos OS on MX Series: * All versions before 21.4R3-S9, * from 22.2 before 22.2R3-S5,  * from 22.3 before 22.3R3-S4, * from 22.4 before 22.4R3-S2, * from 23.2 before 23.2R2-S1, * from 23.4 before 23.4R2.

Remediation

Solution:

  • The following software releases of Junos OS have been updated to resolve this specific issue: 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S2, 23.2R2-S1, 23.4R2, 24.2R1 and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue. Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.

Category

6.8
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2024-47496?
CVE-2024-47496 has been scored as a medium severity vulnerability.
How to fix CVE-2024-47496?
To fix CVE-2024-47496: The following software releases of Junos OS have been updated to resolve this specific issue: 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S2, 23.2R2-S1, 23.4R2, 24.2R1 and all subsequent releases.
Is CVE-2024-47496 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-47496 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-2024-47496?
CVE-2024-47496 affects Juniper Networks Junos OS.
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