CVE-2021-47501
Intel i40e NULL Pointer Dereference Linux Kernel Information Disclosure Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors.
INFO
Published Date :
May 24, 2024, 3:15 p.m.
Last Modified :
Jan. 6, 2025, 8:44 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-2021-47501.
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-2021-47501 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47501 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:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.12 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:5.16:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e No Types Assigned https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e Patch Changed Reference Type https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e No Types Assigned https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e Patch Changed Reference Type https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 No Types Assigned https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 Patch Changed Reference Type https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 No Types Assigned https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 Patch Changed Reference Type https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 No Types Assigned https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 Patch Changed Reference Type https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 No Types Assigned https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 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/16431e442db248ecd8aa9457cf0a656f1885f56e Added Reference https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 Added Reference https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 -
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: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors. Added Reference kernel.org https://git.kernel.org/stable/c/e5b7fb2198abc50058f1a29c395b004f76ab1c83 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/16431e442db248ecd8aa9457cf0a656f1885f56e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/23ec111bf3549aae37140330c31a16abfc172421 [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-2021-47501 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-2021-47501
weaknesses.