medium
6.5
CWE
20
Advisory Published
Updated

CVE-2022-22214: Junos OS and Junos OS Evolved: In an MPLS scenario upon receipt of a specific IPv6 packet an FPC will crash

First published: Wed Jul 13 2022(Updated: )

An Improper Input Validation vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause a PFE crash and thereby a Denial of Service (DoS). An FPC will crash and reboot after receiving a specific transit IPv6 packet over MPLS. Continued receipt of this packet will create a sustained Denial of Service (DoS) condition. This issue does not affect systems configured for IPv4 only. This issue affects: Juniper Networks Junos OS All versions prior to 12.3R12-S21; 15.1 versions prior to 15.1R7-S10; 17.3 versions prior to 17.3R3-S12; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S4; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved All versions prior to 20.4R3-S3-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-S1-EVO, 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Junos OS Evolved<12.3
Junos OS Evolved=12.3
Junos OS Evolved=12.3-r1
Junos OS Evolved=12.3-r10
Junos OS Evolved=12.3-r10-s1
Junos OS Evolved=12.3-r10-s2
Junos OS Evolved=12.3-r11
Junos OS Evolved=12.3-r12
Junos OS Evolved=12.3-r12-s1
Junos OS Evolved=12.3-r12-s10
Junos OS Evolved=12.3-r12-s11
Junos OS Evolved=12.3-r12-s12
Junos OS Evolved=12.3-r12-s13
Junos OS Evolved=12.3-r12-s14
Junos OS Evolved=12.3-r12-s15
Junos OS Evolved=12.3-r12-s16
Junos OS Evolved=12.3-r12-s17
Junos OS Evolved=12.3-r12-s18
Junos OS Evolved=12.3-r12-s19
Junos OS Evolved=12.3-r12-s20
Junos OS Evolved=12.3-r12-s3
Junos OS Evolved=12.3-r12-s4
Junos OS Evolved=12.3-r12-s6
Junos OS Evolved=12.3-r12-s8
Junos OS Evolved=12.3-r13
Junos OS Evolved=12.3-r2
Junos OS Evolved=12.3-r3
Junos OS Evolved=12.3-r4
Junos OS Evolved=12.3-r5
Junos OS Evolved=12.3-r6
Junos OS Evolved=12.3-r7
Junos OS Evolved=12.3-r8
Junos OS Evolved=12.3-r9
Junos OS Evolved=12.3r12
Junos OS Evolved=15.1-r1
Junos OS Evolved=15.1-r2
Junos OS Evolved=15.1-r3
Junos OS Evolved=15.1-r4
Junos OS Evolved=15.1-r4-s7
Junos OS Evolved=15.1-r4-s8
Junos OS Evolved=15.1-r4-s9
Junos OS Evolved=15.1-r5
Junos OS Evolved=15.1-r5-s1
Junos OS Evolved=15.1-r5-s3
Junos OS Evolved=15.1-r5-s5
Junos OS Evolved=15.1-r5-s6
Junos OS Evolved=15.1-r6
Junos OS Evolved=15.1-r6-s1
Junos OS Evolved=15.1-r6-s2
Junos OS Evolved=15.1-r6-s3
Junos OS Evolved=15.1-r6-s4
Junos OS Evolved=15.1-r6-s6
Junos OS Evolved=15.1-r7
Junos OS Evolved=15.1-r7-s1
Junos OS Evolved=15.1-r7-s11
Junos OS Evolved=15.1-r7-s12
Junos OS Evolved=15.1-r7-s2
Junos OS Evolved=15.1-r7-s3
Junos OS Evolved=15.1-r7-s4
Junos OS Evolved=15.1-r7-s5
Junos OS Evolved=15.1-r7-s6
Junos OS Evolved=15.1-r7-s7
Junos OS Evolved=15.1-r7-s8
Junos OS Evolved=15.1-r7-s9
Junos OS Evolved=17.3
Junos OS Evolved=17.3-r1
Junos OS Evolved=17.3-r1-s1
Junos OS Evolved=17.3-r1-s4
Junos OS Evolved=17.3-r2
Junos OS Evolved=17.3-r2-s1
Junos OS Evolved=17.3-r2-s2
Junos OS Evolved=17.3-r2-s3
Junos OS Evolved=17.3-r2-s4
Junos OS Evolved=17.3-r2-s5
Junos OS Evolved=17.3-r3
Junos OS Evolved=17.3-r3
Junos OS Evolved=17.3-r3-s1
Junos OS Evolved=17.3-r3-s10
Junos OS Evolved=17.3-r3-s11
Junos OS Evolved=17.3-r3-s2
Junos OS Evolved=17.3-r3-s3
Junos OS Evolved=17.3-r3-s4
Junos OS Evolved=17.3-r3-s5
Junos OS Evolved=17.3-r3-s6
Junos OS Evolved=17.3-r3-s7
Junos OS Evolved=17.3-r3-s8
Junos OS Evolved=17.3-r3-s9
Junos OS Evolved=17.3-r4
Junos OS Evolved=18.3
Junos OS Evolved=18.3-r1
Junos OS Evolved=18.3-r1-s1
Junos OS Evolved=18.3-r1-s2
Junos OS Evolved=18.3-r1-s3
Junos OS Evolved=18.3-r1-s4
Junos OS Evolved=18.3-r1-s5
Junos OS Evolved=18.3-r1-s6
Junos OS Evolved=18.3-r2
Junos OS Evolved=18.3-r2-s1
Junos OS Evolved=18.3-r2-s2
Junos OS Evolved=18.3-r2-s3
Junos OS Evolved=18.3-r2-s4
Junos OS Evolved=18.3-r3
Junos OS Evolved=18.3-r3-s1
Junos OS Evolved=18.3-r3-s2
Junos OS Evolved=18.3-r3-s3
Junos OS Evolved=18.3-r3-s4
Junos OS Evolved=18.3-r3-s5
Junos OS Evolved=18.4
Junos OS Evolved=18.4-r1
Junos OS Evolved=18.4-r1-s1
Junos OS Evolved=18.4-r1-s2
Junos OS Evolved=18.4-r1-s3
Junos OS Evolved=18.4-r1-s4
Junos OS Evolved=18.4-r1-s5
Junos OS Evolved=18.4-r1-s6
Junos OS Evolved=18.4-r1-s7
Junos OS Evolved=18.4-r2
Junos OS Evolved=18.4-r2-s1
Junos OS Evolved=18.4-r2-s10
Junos OS Evolved=18.4-r2-s2
Junos OS Evolved=18.4-r2-s3
Junos OS Evolved=18.4-r2-s4
Junos OS Evolved=18.4-r2-s5
Junos OS Evolved=18.4-r2-s6
Junos OS Evolved=18.4-r2-s7
Junos OS Evolved=18.4-r2-s8
Junos OS Evolved=18.4-r3
Junos OS Evolved=18.4-r3-s1
Junos OS Evolved=18.4-r3-s10
Junos OS Evolved=18.4-r3-s11
Junos OS Evolved=18.4-r3-s2
Junos OS Evolved=18.4-r3-s3
Junos OS Evolved=18.4-r3-s4
Junos OS Evolved=18.4-r3-s5
Junos OS Evolved=18.4-r3-s6
Junos OS Evolved=18.4-r3-s7
Junos OS Evolved=18.4-r3-s8
Junos OS Evolved=19.1
Junos OS Evolved=19.1-r1
Junos OS Evolved=19.1-r1-s1
Junos OS Evolved=19.1-r1-s2
Junos OS Evolved=19.1-r1-s3
Junos OS Evolved=19.1-r1-s4
Junos OS Evolved=19.1-r1-s5
Junos OS Evolved=19.1-r1-s6
Junos OS Evolved=19.1-r2
Junos OS Evolved=19.1-r2-s1
Junos OS Evolved=19.1-r2-s2
Junos OS Evolved=19.1-r3
Junos OS Evolved=19.1-r3-s1
Junos OS Evolved=19.1-r3-s2
Junos OS Evolved=19.1-r3-s3
Junos OS Evolved=19.1-r3-s4
Junos OS Evolved=19.1-r3-s5
Junos OS Evolved=19.1-r3-s6
Junos OS Evolved=19.2
Junos OS Evolved=19.2-r1
Junos OS Evolved=19.2-r1-s1
Junos OS Evolved=19.2-r1-s2
Junos OS Evolved=19.2-r1-s3
Junos OS Evolved=19.2-r1-s4
Junos OS Evolved=19.2-r1-s5
Junos OS Evolved=19.2-r1-s6
Junos OS Evolved=19.2-r2
Junos OS Evolved=19.2-r2-s1
Junos OS Evolved=19.2-r3
Junos OS Evolved=19.2-r3-s1
Junos OS Evolved=19.2-r3-s2
Junos OS Evolved=19.3
Junos OS Evolved=19.3-r1
Junos OS Evolved=19.3-r1-s1
Junos OS Evolved=19.3-r2
Junos OS Evolved=19.3-r2-s1
Junos OS Evolved=19.3-r2-s2
Junos OS Evolved=19.3-r2-s3
Junos OS Evolved=19.3-r2-s4
Junos OS Evolved=19.3-r2-s5
Junos OS Evolved=19.3-r2-s6
Junos OS Evolved=19.3-r3
Junos OS Evolved=19.3-r3-s1
Junos OS Evolved=19.3-r3-s2
Junos OS Evolved=19.3-r3-s3
Junos OS Evolved=19.4
Junos OS Evolved=19.4-r1
Junos OS Evolved=19.4-r1-s1
Junos OS Evolved=19.4-r1-s2
Junos OS Evolved=19.4-r1-s3
Junos OS Evolved=19.4-r1-s4
Junos OS Evolved=19.4-r2
Junos OS Evolved=19.4-r2-s1
Junos OS Evolved=19.4-r2-s2
Junos OS Evolved=19.4-r2-s3
Junos OS Evolved=19.4-r2-s4
Junos OS Evolved=19.4-r2-s5
Junos OS Evolved=19.4-r2-s6
Junos OS Evolved=19.4-r3
Junos OS Evolved=19.4-r3-s1
Junos OS Evolved=19.4-r3-s2
Junos OS Evolved=19.4-r3-s3
Junos OS Evolved=19.4-r3-s4
Junos OS Evolved=20.1
Junos OS Evolved=20.1-r1
Junos OS Evolved=20.1-r1-s1
Junos OS Evolved=20.1-r1-s2
Junos OS Evolved=20.1-r1-s3
Junos OS Evolved=20.1-r1-s4
Junos OS Evolved=20.1-r2
Junos OS Evolved=20.1-r2-s1
Junos OS Evolved=20.1-r2-s2
Junos OS Evolved=20.2
Junos OS Evolved=20.2-r1
Junos OS Evolved=20.2-r1-s1
Junos OS Evolved=20.2-r1-s2
Junos OS Evolved=20.2-r1-s3
Junos OS Evolved=20.2-r2
Junos OS Evolved=20.2-r2-s1
Junos OS Evolved=20.2-r2-s2
Junos OS Evolved=20.2-r2-s3
Junos OS Evolved=20.2-r3
Junos OS Evolved=20.2-r3-s1
Junos OS Evolved=20.3
Junos OS Evolved=20.3-r1
Junos OS Evolved=20.3-r1-s1
Junos OS Evolved=20.3-r1-s2
Junos OS Evolved=20.3-r2
Junos OS Evolved=20.3-r2-s1
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=21.1
Junos OS Evolved=21.1-r1
Junos OS Evolved=21.1-r1-s1
Juniper JUNOS<20.4
Juniper JUNOS=20.4
Juniper JUNOS=20.4-r1
Juniper JUNOS=20.4-r1-s1
Juniper JUNOS=20.4-r1-s2
Juniper JUNOS=20.4-r2
Juniper JUNOS=20.4-r2-s1
Juniper JUNOS=20.4-r2-s2
Juniper JUNOS=20.4-r2-s3
Juniper JUNOS=20.4-r3
Juniper JUNOS=20.4-r3-s1
Juniper JUNOS=20.4-r3-s2
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=21.3
Juniper JUNOS=21.3-r1
Juniper JUNOS=21.3-r1-s1
Juniper JUNOS=21.3-r2
Juniper JUNOS=21.4
Juniper JUNOS=21.4-r1
Juniper JUNOS=21.4-r1-s1

Remedy

The following software releases have been updated to resolve this specific issue: 12.3R12-S21, 15.1R7-S10, 17.3R3-S12, 18.3R3-S6, 18.4R2-S9, 18.4R3-S9, 19.1R2-S3, 19.1R3-S7, 19.2R1-S7, 19.2R3-S3, 19.3R2-S7, 19.3R3-S4, 19.4R3-S5, 20.1R3, 20.2R3-S2, 20.3R3, 20.4R2-S2, 20.4R3, 21.1R2, 21.2R1, and all subsequent releases. Junos OS Evolved: 20.4R3-S3-EVO, 21.2R3-EVO, 21.3R2-S1-EVO, 21.3R3-EVO, 21.4R2-EVO, 22.1R1-EVO, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-22214?

    The severity of CVE-2022-22214 is classified as high due to its potential to cause a Denial of Service (DoS).

  • How do I fix CVE-2022-22214?

    To fix CVE-2022-22214, update the Junos OS and Junos OS Evolved to the recommended patched versions provided by Juniper Networks.

  • What systems are affected by CVE-2022-22214?

    CVE-2022-22214 affects various versions of Juniper Networks Junos OS and Junos OS Evolved, particularly those prior to the patched updates.

  • What can an attacker achieve with CVE-2022-22214?

    An attacker can exploit CVE-2022-22214 to crash the Packet Forwarding Engine (PFE), resulting in a Denial of Service condition.

  • Is there a workaround for CVE-2022-22214?

    There is no official workaround for CVE-2022-22214, and the best approach is to apply the necessary software updates as soon as possible.

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