CVE-2021-47320
Linux NFS ACL Memory Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: nfs: fix acl memory leak of posix_acl_create() When looking into another nfs xfstests report, I found acl and default_acl in nfs3_proc_create() and nfs3_proc_mknod() error paths are possibly leaked. Fix them in advance.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 24, 2024, 4:27 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-2021-47320.
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-2021-47320 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47320 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. 24, 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-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.14 up to (excluding) 4.4.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.240 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.134 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.52 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.4 Changed Reference Type https://git.kernel.org/stable/c/0704f617040c397ae73c1f88f3956787ec5d6529 No Types Assigned https://git.kernel.org/stable/c/0704f617040c397ae73c1f88f3956787ec5d6529 Patch Changed Reference Type https://git.kernel.org/stable/c/0704f617040c397ae73c1f88f3956787ec5d6529 No Types Assigned https://git.kernel.org/stable/c/0704f617040c397ae73c1f88f3956787ec5d6529 Patch Changed Reference Type https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 No Types Assigned https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 Patch Changed Reference Type https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 No Types Assigned https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 Patch Changed Reference Type https://git.kernel.org/stable/c/2e3960f276b4574a9bb0dfa31a7497302f6363b2 No Types Assigned https://git.kernel.org/stable/c/2e3960f276b4574a9bb0dfa31a7497302f6363b2 Patch Changed Reference Type https://git.kernel.org/stable/c/2e3960f276b4574a9bb0dfa31a7497302f6363b2 No Types Assigned https://git.kernel.org/stable/c/2e3960f276b4574a9bb0dfa31a7497302f6363b2 Patch Changed Reference Type https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 No Types Assigned https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 Patch Changed Reference Type https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 No Types Assigned https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 Patch Changed Reference Type https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 No Types Assigned https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 Patch Changed Reference Type https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 No Types Assigned https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 Patch Changed Reference Type https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 No Types Assigned https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 Patch Changed Reference Type https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 No Types Assigned https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 Patch Changed Reference Type https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 No Types Assigned https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 Patch Changed Reference Type https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 No Types Assigned https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 Patch Changed Reference Type https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b No Types Assigned https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b Patch Changed Reference Type https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b No Types Assigned https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b Patch Changed Reference Type https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 No Types Assigned https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 Patch Changed Reference Type https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 No Types Assigned https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 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/0704f617040c397ae73c1f88f3956787ec5d6529 Added Reference https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 Added Reference https://git.kernel.org/stable/c/2e3960f276b4574a9bb0dfa31a7497302f6363b2 Added Reference https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 Added Reference https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 Added Reference https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 Added Reference https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 Added Reference https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b Added Reference https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 -
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. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: nfs: fix acl memory leak of posix_acl_create() When looking into another nfs xfstests report, I found acl and default_acl in nfs3_proc_create() and nfs3_proc_mknod() error paths are possibly leaked. Fix them in advance. Added Reference kernel.org https://git.kernel.org/stable/c/2e3960f276b4574a9bb0dfa31a7497302f6363b2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0704f617040c397ae73c1f88f3956787ec5d6529 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 [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-2021-47320 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-2021-47320
weaknesses.