CVE-2021-47164
Linux Kernel - Mellanox Technologies - Null Pointer Dereference
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix null deref accessing lag dev It could be the lag dev is null so stop processing the event. In bond_enslave() the active/backup slave being set before setting the upper dev so first event is without an upper dev. After setting the upper dev with bond_master_upper_dev_link() there is a second event and in that event we have an upper dev.
INFO
Published Date :
March 25, 2024, 10:15 a.m.
Last Modified :
May 23, 2024, 5:50 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
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information, practical solutions, and valuable tools related to
CVE-2021-47164.
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-2021-47164 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47164 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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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
May. 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 Changed Reference Type https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587 No Types Assigned https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587 Patch Changed Reference Type https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55 No Types Assigned https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55 Patch Changed Reference Type https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d No Types Assigned https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d Patch Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.8 up to (excluding) 5.10.42 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.9 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 25, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix null deref accessing lag dev It could be the lag dev is null so stop processing the event. In bond_enslave() the active/backup slave being set before setting the upper dev so first event is without an upper dev. After setting the upper dev with bond_master_upper_dev_link() there is a second event and in that event we have an upper dev. Added Reference kernel.org https://git.kernel.org/stable/c/2e4b0b95a489259f9d35a3db17023061f8f3d587 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bdfd3593a8248eea6ecfcbf7b47b56b86515672d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/83026d83186bc48bb41ee4872f339b83f31dfc55 [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-2021-47164 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-2021-47164
weaknesses.