Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2022-22170

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/01/2022
Last modified:
26/01/2022

Description

A Missing Release of Resource after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN which cause heap memory to leak and on exhaustion the PFE to reset. The heap memory utilization can be monitored with the command: user@host> show chassis fpc This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R2-S6, 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect versions of Junos OS prior to 19.4R1.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r1-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:19.4:r3-s3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools