CVEvulnerability

CVE-2020-1651

6.5 MEDIUM Published 2020-07-17 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-07-17
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
3.3 LOW — AV:A/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-19, CWE-401

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.

Affected configurations

• juniper junos 17.2 • juniper junos 17.2x75 • juniper junos 17.3 • juniper junos 17.4 • juniper junos 18.1

Related

Weakness · not in database (1)

Weakness · CWE (1)

  • CWE-401 Missing Release of Memory after Effective Lifetime weakness

References