CVE-2021-47347
Airtec wl1251 Buffer Overflow Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: wl1251: Fix possible buffer overflow in wl1251_cmd_scan Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
April 2, 2025, 2:31 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
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-2021-47347.
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-2021-47347 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47347 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.
-
Initial Analysis by [email protected]
Apr. 02, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.240 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.133 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.51 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.3 Added Reference Type CVE: https://git.kernel.org/stable/c/0f6c0488368c9ac1aa685821916fadba32f5d1ef Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0f6c0488368c9ac1aa685821916fadba32f5d1ef Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/115103f6e3f1c26c473766c16439c7c8b235529a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/115103f6e3f1c26c473766c16439c7c8b235529a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/40af3960a15339e8bbd3be50c3bc7b35e1a0b6ea Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/40af3960a15339e8bbd3be50c3bc7b35e1a0b6ea Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/57ad99ae3c6738ba87bad259bb57c641ca68ebf6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/57ad99ae3c6738ba87bad259bb57c641ca68ebf6 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c5e4a10d7bd5d4f419d8b9705dff60cf69b302a1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c5e4a10d7bd5d4f419d8b9705dff60cf69b302a1 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d10a87a3535cce2b890897914f5d0d83df669c63 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d10a87a3535cce2b890897914f5d0d83df669c63 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d3d8b9c9c7843dce31e284927d4c9904fd5a510a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d3d8b9c9c7843dce31e284927d4c9904fd5a510a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d71dddeb5380613f9ef199f3e7368fd78fb1a46e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d71dddeb5380613f9ef199f3e7368fd78fb1a46e 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/0f6c0488368c9ac1aa685821916fadba32f5d1ef Added Reference https://git.kernel.org/stable/c/115103f6e3f1c26c473766c16439c7c8b235529a Added Reference https://git.kernel.org/stable/c/302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a Added Reference https://git.kernel.org/stable/c/40af3960a15339e8bbd3be50c3bc7b35e1a0b6ea Added Reference https://git.kernel.org/stable/c/57ad99ae3c6738ba87bad259bb57c641ca68ebf6 Added Reference https://git.kernel.org/stable/c/c5e4a10d7bd5d4f419d8b9705dff60cf69b302a1 Added Reference https://git.kernel.org/stable/c/d10a87a3535cce2b890897914f5d0d83df669c63 Added Reference https://git.kernel.org/stable/c/d3d8b9c9c7843dce31e284927d4c9904fd5a510a Added Reference https://git.kernel.org/stable/c/d71dddeb5380613f9ef199f3e7368fd78fb1a46e -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 13, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-120 Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: wl1251: Fix possible buffer overflow in wl1251_cmd_scan Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size. Added Reference kernel.org https://git.kernel.org/stable/c/57ad99ae3c6738ba87bad259bb57c641ca68ebf6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d3d8b9c9c7843dce31e284927d4c9904fd5a510a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0f6c0488368c9ac1aa685821916fadba32f5d1ef [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/115103f6e3f1c26c473766c16439c7c8b235529a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d71dddeb5380613f9ef199f3e7368fd78fb1a46e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c5e4a10d7bd5d4f419d8b9705dff60cf69b302a1 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/40af3960a15339e8bbd3be50c3bc7b35e1a0b6ea [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d10a87a3535cce2b890897914f5d0d83df669c63 [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-2021-47347 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-2021-47347
weaknesses.