CVE-2021-42375

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

15/11/2021

Last modified:

23/04/2025

Description

An incorrect handling of a special element in Busybox&#39;s ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.

Impact

Vector 3.x

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

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vector 2.0

AV:L/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 1.90 LOW
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P

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

Base Score 2.0

1.90

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:busybox:busybox:1.33.1:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:a:netapp:hci_management_node:-:::::::*
cpe:2.3:a:netapp:solidfire:-:::::::*
cpe:2.3:o:netapp:h300s_firmware:-:::::::*
cpe:2.3:h:netapp:h300s:-:::::::*
cpe:2.3:o:netapp:h500s_firmware:-:::::::*
cpe:2.3:h:netapp:h500s:-:::::::*
cpe:2.3:o:netapp:h700s_firmware:-:::::::*
cpe:2.3:h:netapp:h700s:-:::::::*
cpe:2.3:o:netapp:h300e_firmware:-:::::::*
cpe:2.3:h:netapp:h300e:-:::::::*
cpe:2.3:o:netapp:h500e_firmware:-:::::::*

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

CPE	From	Up to
cpe:2.3:a:busybox:busybox:1.33.1:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:a:netapp:hci_management_node:-:::::::*
cpe:2.3:a:netapp:solidfire:-:::::::*
cpe:2.3:o:netapp:h300s_firmware:-:::::::*
cpe:2.3:h:netapp:h300s:-:::::::*
cpe:2.3:o:netapp:h500s_firmware:-:::::::*
cpe:2.3:h:netapp:h500s:-:::::::*
cpe:2.3:o:netapp:h700s_firmware:-:::::::*
cpe:2.3:h:netapp:h700s:-:::::::*
cpe:2.3:o:netapp:h300e_firmware:-:::::::*
cpe:2.3:h:netapp:h300e:-:::::::*
cpe:2.3:o:netapp:h500e_firmware:-:::::::*

CVE-2021-42375

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools