CVE-2021-47360

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

21/05/2024

Last modified:

12/05/2025

Description

In the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes. Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

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

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.0 (including)	5.4.150 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.70 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.14.9 (excluding)
cpe:2.3:o:linux:linux_kernel:4.20.1:::::::*
cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::

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

CVE-2021-47360

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools