CVE-2021-42374

Severity CVSS v4.0:

Pending analysis

Type:

CWE-125 Out-of-bounds Read

Publication date:

15/11/2021

Last modified:

03/11/2025

Description

An out-of-bounds heap read in Busybox&#39;s unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that

Impact

Vector 3.x

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

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/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): Low
Integrity (I): None
Availability (A): High

Base Score 3.x

5.30

Severity 3.x

MEDIUM

Vector 2.0

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

Base Score: 3.30 LOW
Vector: AV:L/AC:M/Au:N/C:P/I:N/A:P

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

Base Score 2.0

3.30

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:busybox:busybox::::::::	1.27.0 (including)	1.33.1 (including)
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::::::::	1.27.0 (including)	1.33.1 (including)
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-2021-42374

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools