CVE-2021-46950
"Apache Linux Kernel Data Corruption Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1: properly indicate failure when ending a failed write request This patch addresses a data corruption bug in raid1 arrays using bitmaps. Without this fix, the bitmap bits for the failed I/O end up being cleared. Since we are in the failure leg of raid1_end_write_request, the request either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).
INFO
Published Date :
Feb. 27, 2024, 7:04 p.m.
Last Modified :
Aug. 22, 2024, 8:28 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
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-2021-46950.
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-2021-46950 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-46950 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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Reanalysis by [email protected]
Aug. 22, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.14.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.191 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20.0 up to (excluding) 5.4.118 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11.0 up to (excluding) 5.11.20 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12.0 up to (excluding) 5.12.3 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.147 up to (excluding) 4.14.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.77 up to (excluding) 4.19.191 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.2.19 up to (excluding) 5.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.3.4 up to (excluding) 5.4.118 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.11.20 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12 up to (excluding) 5.12.3 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Apr. 10, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5 No Types Assigned https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5 Patch Changed Reference Type https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd No Types Assigned https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd Patch Changed Reference Type https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd No Types Assigned https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd Patch Changed Reference Type https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515 No Types Assigned https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515 Patch Changed Reference Type https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382 No Types Assigned https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382 Patch Changed Reference Type https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40 No Types Assigned https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40 Patch Changed Reference Type https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f No Types Assigned https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f Patch Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.14.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.191 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20.0 up to (excluding) 5.4.118 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11.0 up to (excluding) 5.11.20 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12.0 up to (excluding) 5.12.3 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 27, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: md/raid1: properly indicate failure when ending a failed write request This patch addresses a data corruption bug in raid1 arrays using bitmaps. Without this fix, the bitmap bits for the failed I/O end up being cleared. Since we are in the failure leg of raid1_end_write_request, the request either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded). Added Reference Linux https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd [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-2021-46950 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-2021-46950
weaknesses.