CVE-2021-47167
"Linux NFS Oops Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix an Oopsable condition in __nfs_pageio_add_request() Ensure that nfs_pageio_error_cleanup() resets the mirror array contents, so that the structure reflects the fact that it is now empty. Also change the test in nfs_pageio_do_add_request() to be more robust by checking whether or not the list is empty rather than relying on the value of pg_count.
INFO
Published Date :
March 25, 2024, 10:15 a.m.
Last Modified :
March 17, 2025, 3:03 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the affected kernel packages.
- Reboot the system after the update.
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-2021-47167.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47167 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-2021-47167
weaknesses.
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-2021-47167 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47167 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]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.12.9 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.42 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.0 from (excluding) 5.4.124 Added Reference Type CVE: https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101 Types: 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/15ac6f14787649e8ebd75c142e2c5d2a243c8490 Added Reference https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e Added Reference https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb Added Reference https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
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: NFS: Fix an Oopsable condition in __nfs_pageio_add_request() Ensure that nfs_pageio_error_cleanup() resets the mirror array contents, so that the structure reflects the fact that it is now empty. Also change the test in nfs_pageio_do_add_request() to be more robust by checking whether or not the list is empty rather than relying on the value of pg_count. Added Reference kernel.org https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb [No types assigned]