CVE-2020-1651

Junos OS: MX Series: PFE on the line card may crash due to memory leak.

Published Jul 17, 2020 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

The following software releases have been updated to resolve this specific issue: 17.2R3-S4, 17.2X75-D105.19, 17.3R3-S7, 17.4R1-S3, 17.4R2, 18.1R2, 18.2R1, 18.2X75-D10, and all subsequent releases.


Vendor Workaround

There are no available workarounds for this issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-12516 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.
References
History

No history.