CVE-2021-47372
Linux Kernel Macb PCI Use-After-Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: net: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 26, 2024, 5:57 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-2021-47372.
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-2021-47372 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47372 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. 26, 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 Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.14.249 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.150 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.70 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.9 *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e No Types Assigned https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e Patch Changed Reference Type https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e No Types Assigned https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e Patch Changed Reference Type https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b No Types Assigned https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b Patch Changed Reference Type https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b No Types Assigned https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b Patch Changed Reference Type https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 No Types Assigned https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 Patch Changed Reference Type https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 No Types Assigned https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 Patch Changed Reference Type https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b No Types Assigned https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b Patch Changed Reference Type https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b No Types Assigned https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b Patch Changed Reference Type https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 No Types Assigned https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 Patch Changed Reference Type https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 No Types Assigned https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 Patch Changed Reference Type https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 No Types Assigned https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 Patch Changed Reference Type https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 No Types Assigned https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 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/1da750d1e2140ef43d64d17f301ff6f41b45541e Added Reference https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b Added Reference https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 Added Reference https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b Added Reference https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 Added Reference https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 -
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: net: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80 Added Reference kernel.org https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 [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-2021-47372 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-2021-47372
weaknesses.