Junos OS: QFX5000 Series and MX Series: An l2alm crash leading to an FPC crash can be observed in VxLAN scenario
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). On QFX5K Series and MX Series, when the PFE receives a specific VxLAN packet the Layer 2 Address Learning Manager (L2ALM) process will crash leading to an FPC reboot. Continued receipt of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 Series, MX Series: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1. This issue does not affect Juniper Networks Junos OS: All versions prior to 20.3R1; 21.1 version 21.1R1 and later versions.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos OS | 20.3 to before 20.3R3-S3; 20.4 to before 20.4R3-S2; 21.2 to before 21.2R2-S1 | 20.3R3-S3, 20.4R3-S2, 21.2R2-S1 | Patch available | CNA |
| Juniper | Junos OS | — | 21.1R1 | Patch available | CNA |
- Junos OS VendorJuniper Affected 20.3 to before 20.3R3-S3; 20.4 to before 20.4R3-S2; 21.2 to before 21.2R2-S1 Fixed in 20.3R3-S3, 20.4R3-S2, 21.2R2-S1 Patch available CNA
- Junos OS VendorJuniper Affected — Fixed in 21.1R1 Patch available CNA
CPE configurations NVD · 51
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:20.3:-:*:*:*:*:*:* | 20.3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* | 20.3 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* | 20.3 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r1-s2:*:*:*:*:*:* | 20.3 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:* | 20.3 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:* | 20.3 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r3:*:*:*:*:*:* | 20.3 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r3-s1:*:*:*:*:*:* | 20.3 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r3-s2:*:*:*:*:*:* | 20.3 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:* | 20.4 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:20.3:-:*:*:*:*:*:* Versions 20.3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* Versions 20.3 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* Versions 20.3 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r1-s2:*:*:*:*:*:* Versions 20.3 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:* Versions 20.3 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:* Versions 20.3 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r3:*:*:*:*:*:* Versions 20.3 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r3-s1:*:*:*:*:*:* Versions 20.3 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r3-s2:*:*:*:*:*:* Versions 20.3 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:* Versions 20.4 Vulnerable ·Juniper
Show 41 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* | 20.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* | 20.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:* | 20.4 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:* | 20.4 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:* | 20.4 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:* | 20.4 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:* | 20.4 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:* | 21.2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:* | 21.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:* | 21.2 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:* | 21.2 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:* | 21.2 r2 | Vulnerable | Juniper |
| cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx10008:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx10016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5100-96s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5110:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5120:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5130:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5200-32c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5200-48y:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5210:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5210-64c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
- cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* Versions 20.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* Versions 20.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:* Versions 20.4 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:* Versions 20.4 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:* Versions 20.4 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:* Versions 20.4 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:* Versions 20.4 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:* Versions 21.2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:* Versions 21.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:* Versions 21.2 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:* Versions 21.2 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:* Versions 21.2 r2 Vulnerable ·Juniper
- cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx10008:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx10016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5100-96s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5110:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5120:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5130:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5200-32c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5200-48y:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5210:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5210-64c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
Remediation
- Fix · CNA Junos OS (Juniper Networks) Fixed in 20.3R3-S3, 20.4R3-S2, 21.2R2-S1
- Fix · CNA Junos OS (Juniper Networks) Fixed in 21.1R1
Timeline
- 2026-10-02 Threatist record created from CVE-2022-22210
- 2026-10-03 Alias added: GHSA-468h-vwvc-rxx5
References
Advisory 1
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- TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-22210 · CVE Program
- CVE-2022-22210 · NVD
- FIRST EPSS
- GHSA-468h-vwvc-rxx5 · GitHub Advisory Database · CC BY 4.0
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