CVE-2021-47443
Android NFC Memory Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() 'params' is allocated in digital_tg_listen_mdaa(), but not free when digital_send_cmd() failed, which will cause memory leak. Fix it by freeing 'params' if digital_send_cmd() return failed.
INFO
Published Date :
May 22, 2024, 7:15 a.m.
Last Modified :
April 2, 2025, 3:12 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2021-47443.
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-2021-47443 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47443 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]
Apr. 02, 2025
Action Type Old Value New Value Added CWE CWE-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.288 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.13 up to (excluding) 4.4.290 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.252 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.213 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.155 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.14 Added Reference Type CVE: https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b 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/3f2960b39f22e26cf8addae93c3f5884d1c183c9 Added Reference https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5 Added Reference https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c Added Reference https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907 Added Reference https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed Added Reference https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416 Added Reference https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e Added Reference https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 06, 2024
Action Type Old Value New Value Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H -
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. 22, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() 'params' is allocated in digital_tg_listen_mdaa(), but not free when digital_send_cmd() failed, which will cause memory leak. Fix it by freeing 'params' if digital_send_cmd() return failed. Added Reference kernel.org https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47443 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-2021-47443
weaknesses.