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

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CVE-2021-0298

Severity CVSS v4.0:
Pending analysis
Type:
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
19/10/2021
Last modified:
25/10/2021

Description

A Race Condition in the 'show chassis pic' command in Juniper Networks Junos OS Evolved may allow an attacker to crash the port interface concentrator daemon (picd) process on the FPC, if the command is executed coincident with other system events outside the attacker's control, leading to a Denial of Service (DoS) condition. Continued execution of the CLI command, under precise conditions, could create a sustained Denial of Service (DoS) condition. This issue affects all Juniper Networks Junos OS Evolved versions prior to 20.1R2-EVO on PTX10003 and PTX10008 platforms. Junos OS is not affected by this vulnerability.

Impact

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

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
4.70
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:H/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: AV:L/AC:H/Au:N/C:N/I:N/A:C

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
4.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos_os_evolved:18.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:19.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:*
cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:ptx10008:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools