CVE-2021-38201
Linux Kernel SunRPC XDR Denial of Service
Description
net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
INFO
Published Date :
Aug. 8, 2021, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 6:16 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-38201
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2021-38201.
| URL | Resource |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 | Mailing List Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210902-0010/ | Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 | Mailing List Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210902-0010/ | Third Party Advisory |
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-2021-38201 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-38201 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.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Added Reference https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c Added Reference https://security.netapp.com/advisory/ntap-20210902-0010/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Apr. 23, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.13.4 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11.0 up to (excluding) 5.12.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13.0 up to (excluding) 5.13.4 -
Modified Analysis by [email protected]
Oct. 07, 2021
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20210902-0010/ No Types Assigned https://security.netapp.com/advisory/ntap-20210902-0010/ Third Party Advisory Added CPE Configuration AND OR *cpe:2.3:o:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 02, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210902-0010/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing List, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c No Types Assigned https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c Patch, Third Party Advisory Added CWE NIST CWE-119 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.13.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-38201 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-2021-38201
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.32 }} -0.06%
score
0.70166
percentile