CVE-2021-47500
MMA8452 IIO Use-After-Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call `iio_trigger_put()` to drop the reference count by 1. Without the matching `iio_trigger_get()` in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs. Fix this by getting a reference to the trigger before assigning it to the IIO device.
INFO
Published Date :
May 24, 2024, 3:15 p.m.
Last Modified :
Jan. 6, 2025, 8:45 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-2021-47500.
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).
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The following list is the news that have been mention
CVE-2021-47500 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47500 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]
Jan. 06, 2025
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 Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.2 up to (excluding) 4.4.295 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.293 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.258 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.221 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.165 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.85 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.8 *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *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:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071ba No Types Assigned https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071ba Patch Changed Reference Type https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071ba No Types Assigned https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071ba Patch Changed Reference Type https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcb No Types Assigned https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcb Patch Changed Reference Type https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcb No Types Assigned https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcb Patch Changed Reference Type https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5e No Types Assigned https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5e Patch Changed Reference Type https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5e No Types Assigned https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5e Patch Changed Reference Type https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739 No Types Assigned https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739 Patch Changed Reference Type https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739 No Types Assigned https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739 Patch Changed Reference Type https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892 No Types Assigned https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892 Patch Changed Reference Type https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892 No Types Assigned https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892 Patch Changed Reference Type https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1 No Types Assigned https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1 Patch Changed Reference Type https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1 No Types Assigned https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1 Patch Changed Reference Type https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8 No Types Assigned https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8 Patch Changed Reference Type https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8 No Types Assigned https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8 Patch Changed Reference Type https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96 No Types Assigned https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96 Patch Changed Reference Type https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96 No Types Assigned https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96 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/094d513b78b1714113bc016684b8142382e071ba Added Reference https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcb Added Reference https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5e Added Reference https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739 Added Reference https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892 Added Reference https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1 Added Reference https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8 Added Reference https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96 -
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. 24, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call `iio_trigger_put()` to drop the reference count by 1. Without the matching `iio_trigger_get()` in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs. Fix this by getting a reference to the trigger before assigning it to the IIO device. Added Reference kernel.org https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071ba [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892 [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-2021-47500 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-2021-47500
weaknesses.