CVE-2021-47002
Sunrpc Null Pointer Dereference
Description
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix null pointer dereference in svc_rqst_free() When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). Fix it by adding a null check. Addresses-Coverity: ("Dereference after null check")
INFO
Published Date :
Feb. 28, 2024, 9:15 a.m.
Last Modified :
Dec. 9, 2024, 6:25 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
- n/a
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-2021-47002.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47002 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-2021-47002
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-2021-47002 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47002 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. 09, 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 Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.221 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.11.22 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12 up to (excluding) 5.12.5 Changed Reference Type https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c No Types Assigned https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c Patch Changed Reference Type https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c No Types Assigned https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c Patch Changed Reference Type https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 No Types Assigned https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 Patch Changed Reference Type https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 No Types Assigned https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 Patch Changed Reference Type https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 No Types Assigned https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 Patch Changed Reference Type https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 No Types Assigned https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 Patch Changed Reference Type https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 No Types Assigned https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 Patch Changed Reference Type https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 No Types Assigned https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 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/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c Added Reference https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 Added Reference https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 Added Reference https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 05, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/3de81c1e84bf84803308da3272a829a7655c5336 [No types assigned] -
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
Feb. 28, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix null pointer dereference in svc_rqst_free() When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). Fix it by adding a null check. Addresses-Coverity: ("Dereference after null check") Added Reference Linux https://git.kernel.org/stable/c/1e10f58f1c9a6b667b045513c7a4e6111c24fe7c [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/c664aaec9aee544538a78ba4893a44bc73a6d742 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/b9f83ffaa0c096b4c832a43964fe6bff3acffe10 [No types assigned]