CVE-2021-47311
Qualcomm EMC Use-After-Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 26, 2024, 7:50 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-2021-47311.
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-2021-47311 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47311 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 from (including) 4.9 up to (excluding) 4.9.277 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.241 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.199 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.135 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.53 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.13.5 *cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7 No Types Assigned https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7 Patch Changed Reference Type https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7 No Types Assigned https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7 Patch Changed Reference Type https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c No Types Assigned https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c Patch Changed Reference Type https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c No Types Assigned https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c Patch Changed Reference Type https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81 No Types Assigned https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81 Patch Changed Reference Type https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81 No Types Assigned https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81 Patch Changed Reference Type https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839 No Types Assigned https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839 Patch Changed Reference Type https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839 No Types Assigned https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839 Patch Changed Reference Type https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4 No Types Assigned https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4 Patch Changed Reference Type https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4 No Types Assigned https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4 Patch Changed Reference Type https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d No Types Assigned https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d Patch Changed Reference Type https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d No Types Assigned https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d Patch Changed Reference Type https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833 No Types Assigned https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833 Patch Changed Reference Type https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833 No Types Assigned https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833 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/11e9d163d631198bb3eb41a677a61b499516c0f7 Added Reference https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c Added Reference https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81 Added Reference https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839 Added Reference https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4 Added Reference https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d Added Reference https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833 -
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: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function. Added Reference kernel.org https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4 [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-2021-47311 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-2021-47311
weaknesses.