CVE-2020-1651

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

State: Published
Severity: 6.5 Medium
Published: Jul 17, 2020
Updated: Sep 17, 2024
Reserved: Nov 4, 2019

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	juniper

Weaknesses

CWE-19 Data Processing Errors

Affected Products

Product	Versions
Junos OSJuniper Networks	before 17.2R1Not affected 17.2 to before 17.2R3-S4Affected 17.2X75 to before 17.2X75-D105.19Affected 17.3 to before 17.3R3-S7Affected 17.4 to before 17.4R1-S3, 17.4R2Affected 18.1 to before 18.1R2Affected

References

https://kb.juniper.net/JSA11038

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