CVE-2022-22207: Junos OS: MX Series with MPC11: In a GNF / node slicing scenario gathering AF interface statistics can lead to a kernel crash

Published Jul 20, 2022

Updated

A Use After Free vulnerability in the Advanced Forwarding Toolkit (AFT) manager process (aftmand) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a kernel crash due to intensive polling of Abstracted Fabric (AF) interface statistics and thereby a Denial of Service (DoS). Continued gathering of AF interface statistics will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on MX Series: 20.1 versions later than 20.1R1; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R2.

Affected Software

65 affected components

Juniper Junos=20.1-r1-s1

Juniper Junos=20.1-r1-s2

Juniper Junos=20.1-r1-s3

Juniper Junos=20.1-r1-s4

Juniper Junos=20.1-r2

Juniper Junos=20.1-r2-s1

Juniper Junos=20.1-r2-s2

Juniper Junos=20.1-r3

Juniper Junos=20.1-r3-s1

Juniper Junos=20.1-r3-s2

Juniper Junos=20.1-r3-s3

Juniper Junos=20.2

Juniper Junos=20.2-r1

Juniper Junos=20.2-r1-s1

Juniper Junos=20.2-r1-s2

Juniper Junos=20.2-r1-s3

Juniper Junos=20.2-r2

Juniper Junos=20.2-r2-s1

Juniper Junos=20.2-r2-s2

Juniper Junos=20.2-r2-s3

Juniper Junos=20.2-r3

Juniper Junos=20.2-r3-s1

Juniper Junos=20.2-r3-s2

Juniper Junos=20.2-r3-s3

Juniper Junos=20.2-r3-s4

Juniper Junos=20.3

Juniper Junos=20.3-r1

Juniper Junos=20.3-r1-s1

Juniper Junos=20.3-r1-s2

Juniper Junos=20.3-r2

Juniper Junos=20.3-r2-s1

Juniper Junos=20.3-r3

Juniper Junos=20.3-r3-s1

Juniper Junos=20.3-r3-s2

Juniper Junos=20.3-r3-s3

Juniper Junos=20.4

Juniper Junos=20.4-r1

Juniper Junos=20.4-r1-s1

Juniper Junos=20.4-r2

Juniper Junos=20.4-r2-s1

Juniper Junos=20.4-r2-s2

Juniper Junos=21.1

Juniper Junos=21.1-r1

Juniper Junos=21.1-r1-s1

Juniper Junos=21.2

Juniper Junos=21.2-r1

Juniper Junos=21.2-r1-s1

Juniper Junos=21.2-r1-s2

Juniper MX10

Juniper Mx10000

Juniper MX10003

Juniper MX10008

Juniper MX10016

Juniper MX104

Juniper MX150

Juniper MX2008

Juniper MX2010

Juniper MX2020

Juniper MX204

Juniper MX240

Juniper Mx40

Juniper MX480

Juniper Mx5

Juniper Mx80

Juniper MX960

Remediation

Information

The following Junos OS software releases have been updated to resolve this specific issue Junos OS: 20.2R3-S5, 20.3R3-S4, 20.4R3, 21.1R2, 21.2R2, 21.3R1, and all subsequent releases.

Event History

Jul 20, 2022

CVE Published

via MITRE·02:14 PM

Data Sourced

via MITRE·02:14 PM

RemedyDescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2022-22207?

CVE-2022-22207 is classified as a critical severity vulnerability due to its potential to cause kernel crashes.

How do I fix CVE-2022-22207?

To fix CVE-2022-22207, you should update your Junos OS to the latest recommended version that addresses this vulnerability.

What types of attacks can be executed using CVE-2022-22207?

CVE-2022-22207 allows unauthenticated networked attackers to conduct denial-of-service attacks by causing kernel crashes.

Which Junos OS versions are affected by CVE-2022-22207?

CVE-2022-22207 affects multiple versions of Junos OS, specifically those within the 20.1 and 20.2 release series.

Is there a workaround for CVE-2022-22207?

There are currently no recommended workarounds for CVE-2022-22207; updating the software is the advised course of action.