CVE-2021-47289
"Dell ACPI NULL Pointer Dereference Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: fix NULL pointer dereference Commit 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 23, 2024, 4:46 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-2021-47289.
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-2021-47289 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47289 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]
Dec. 23, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.4.139 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.57 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.13.6 *cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e No Types Assigned https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e Patch Changed Reference Type https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e No Types Assigned https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e Patch Changed Reference Type https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc No Types Assigned https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc Patch Changed Reference Type https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc No Types Assigned https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc Patch Changed Reference Type https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 No Types Assigned https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 Patch Changed Reference Type https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 No Types Assigned https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 Patch Changed Reference Type https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 No Types Assigned https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 Patch Changed Reference Type https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 No Types Assigned https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 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/38f54217b423c0101d03a00feec6fb8ec608b12e Added Reference https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc Added Reference https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 Added Reference https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 -
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: ACPI: fix NULL pointer dereference Commit 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer. Added Reference kernel.org https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4 [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-2021-47289 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-2021-47289
weaknesses.