Vulnerability CVE-2022-22171 - CERT Civis.Net

Vulnerability Name:

CVE-2022-22171 (CCN-217142)

Assigned:

2021-12-21

Published:

2022-01-12

Updated:

2022-01-26

Summary:

An Improper Check for Unusual or Exceptional Conditions 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 the PFE to reset. This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2. This issue does not affect versions of Junos OS prior to 19.4R1.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

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

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

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

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2022-22171

Source: XF
Type: UNKNOWN
juniper-cve202222171-dos(217142)

Source: CCN
Type: Juniper Networks Security Bulletin JSA11277
Junos OS and Junos OS Evolved: Specific packets over VXLAN cause memory leak and/or FPC reset (CVE-2022-22170, CVE-2022-22171)

Source: CONFIRM
Type: Vendor Advisory
https://kb.juniper.net/JSA11277

Vulnerable Configuration:

Configuration 1:

cpe:/o:juniper:junos:19.4:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r1-s3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r1-s4:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r2-s3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r2-s4:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r2-s5:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3-s3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3-s4:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3-s5:*:*:*:*:*:*

OR cpe:/o:juniper:junos:19.4:r3-s6:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r1-s4:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r2-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r2-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r3-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r3-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r2-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r2-s3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r3-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r3-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r2-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r3-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r3:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.1:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.1:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.1:r2:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.1:r2-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.2:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.3:r1:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:juniper:junos:19.4:-:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.1:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.2:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.3:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:20.4:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.1:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.2:r1:*:*:*:*:*:*

OR cpe:/o:juniper:junos:21.3:r1:*:*:*:*:*:*

Denotes that component is vulnerable