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MEDIUM · 6.5

CVE-2021-0288

A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series and EX9200 Series devices with Trio-based MPCs (Modular Port Concentrators) may cause FPC to crash ...

Vulnerability Description

A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series and EX9200 Series devices with Trio-based MPCs (Modular Port Concentrators) may cause FPC to crash and lead to a Denial of Service (DoS) condition. Continued receipt of this packet will sustain the Denial of Service (DoS) condition. This issue only affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines). This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2;

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
JuniperJunos17.3
JuniperEx9200-
JuniperEx9204-
JuniperEx9208-
JuniperEx9214-
JuniperEx9250-
JuniperEx9251-
JuniperEx9253-
JuniperMx-
JuniperMx10-
JuniperMx10000-
JuniperMx10003-
JuniperMx10008-
JuniperMx10016-
JuniperMx104-
JuniperMx150-
JuniperMx2008-
JuniperMx2010-
JuniperMx2020-
JuniperMx204-

Related Weaknesses (CWE)

CWE-754

References

FAQ

What is CVE-2021-0288?

CVE-2021-0288 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series and EX9200 Series devices with Trio-based MPCs (Modular Port Concentrators) may cause FPC to crash ...

How severe is CVE-2021-0288?

CVE-2021-0288 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-2021-0288?

Check the references section above for vendor advisories and patch information. Affected products include: Juniper Junos, Juniper Ex9200, Juniper Ex9204, Juniper Ex9208, Juniper Ex9214.