CVE-2021-47116
Linux ext4 Memory Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_mb_init_backend on error path. Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large s_log_groups_per_flex.
INFO
Published Date :
March 15, 2024, 9:15 p.m.
Last Modified :
Jan. 7, 2025, 5:31 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 Linux kernel.
- Reboot the system after the kernel update.
Public PoC/Exploit Available at Github
CVE-2021-47116 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-47116.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47116 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-2021-47116
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).
Ini adalah repository kumpulan CVE v.5
allcve cve cvelist newcve
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47116 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47116 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]
Jan. 07, 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-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.43 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.10 *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:5.13:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0 No Types Assigned https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0 Patch Changed Reference Type https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0 No Types Assigned https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0 Patch Changed Reference Type https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 No Types Assigned https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 Patch Changed Reference Type https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 No Types Assigned https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 Patch Changed Reference Type https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 No Types Assigned https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 Patch Changed Reference Type https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 No Types Assigned https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 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/04fb2baa0b147f51db065a1b13a11954abe592d0 Added Reference https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 Added Reference https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 -
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. 15, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_mb_init_backend on error path. Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large s_log_groups_per_flex. Added Reference kernel.org https://git.kernel.org/stable/c/2050c6e5b161e5e25ce3c420fef58b24fa388a49 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/04fb2baa0b147f51db065a1b13a11954abe592d0 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a8867f4e3809050571c98de7a2d465aff5e4daf5 [No types assigned]