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MEDIUM · 6.5

CVE-2020-1651

On Juniper Networks MX series, receipt of a stream of specific Layer 2 frames may cause a memory leak resulting in the packet forwarding engine (PFE) on the line card to crash and restart, causing tra...

Vulnerability Description

On Juniper Networks MX series, receipt of a stream of specific Layer 2 frames may cause a memory leak resulting in the packet forwarding engine (PFE) on the line card to crash and restart, causing traffic interruption. By continuously sending this stream of specific layer 2 frame, an attacker connected to the same broadcast domain can repeatedly crash the PFE, causing a prolonged Denial of Service (DoS). This issue affects Juniper Networks Junos OS on MX Series: 17.2 versions prior to 17.2R3-S4; 17.2X75 versions prior to 17.2X75-D105.19; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R1-S3, 17.4R2; 18.1 versions prior to 18.1R2. This issue does not affect Juniper Networks Junos OS releases prior to 17.2R1.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
JuniperJunos17.2
JuniperMx10-
JuniperMx10000-
JuniperMx10003-
JuniperMx104-
JuniperMx150-
JuniperMx2008-
JuniperMx2010-
JuniperMx2020-
JuniperMx204-
JuniperMx240-
JuniperMx40-
JuniperMx480-
JuniperMx5-
JuniperMx80-
JuniperMx960-

Related Weaknesses (CWE)

CWE-401CWE-19

References

FAQ

What is CVE-2020-1651?

CVE-2020-1651 is a vulnerability with a CVSS score of 6.5 (MEDIUM). On Juniper Networks MX series, receipt of a stream of specific Layer 2 frames may cause a memory leak resulting in the packet forwarding engine (PFE) on the line card to crash and restart, causing tra...

How severe is CVE-2020-1651?

CVE-2020-1651 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-1651?

Check the references section above for vendor advisories and patch information. Affected products include: Juniper Junos, Juniper Mx10, Juniper Mx10000, Juniper Mx10003, Juniper Mx104.