CVE-2021-47360
Android Binder Hung Process Vulnerability
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.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
May 12, 2025, 7:54 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the affected Linux kernel packages.
- Reboot the system to apply the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47360.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47360 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47360
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47360 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47360 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
May. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-252 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.9 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.70 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.0 up to (excluding) 5.4.150 *cpe:2.3:o:linux:linux_kernel:4.20.1:*:*:*:*:*:*:* Added Reference Type CVE: https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d Added Reference https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e Added Reference https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621 Added Reference https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d [No types assigned]