CVE-2021-42739

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

20/10/2021

Last modified:

24/03/2024

Description

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

Impact

Vector 3.x

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

Base Score: 6.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

6.70

Severity 3.x

MEDIUM

Vector 2.0

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

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

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

Base Score 2.0

4.60

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.14.13 (including)
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:a:starwindsoftware:starwind_san_\&_nas:v8r12:::::::*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8r13:14338::::::
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:::::::*

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

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.14.13 (including)
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:a:starwindsoftware:starwind_san_\&_nas:v8r12:::::::*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8r13:14338::::::
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:::::::*
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:::::::*

CVE-2021-42739

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools