CVE-2021-46996
Linux Netfilter NFTables Memory Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Fix a memleak from userdata error path in new objects Release object name if userdata allocation fails.
INFO
Published Date :
Feb. 28, 2024, 9:15 a.m.
Last Modified :
Dec. 6, 2024, 2:55 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 kernel to address the vulnerability.
- Reboot the system to apply 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-2021-46996.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-46996 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-2021-46996
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-2021-46996 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-46996 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. 06, 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) 5.10 up to (excluding) 5.10.38 *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/2c784a500f5edd337258b0fdb2f31bc9abde1a23 No Types Assigned https://git.kernel.org/stable/c/2c784a500f5edd337258b0fdb2f31bc9abde1a23 Patch Changed Reference Type https://git.kernel.org/stable/c/2c784a500f5edd337258b0fdb2f31bc9abde1a23 No Types Assigned https://git.kernel.org/stable/c/2c784a500f5edd337258b0fdb2f31bc9abde1a23 Patch Changed Reference Type https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c No Types Assigned https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c Patch Changed Reference Type https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c No Types Assigned https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c Patch Changed Reference Type https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0 No Types Assigned https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0 Patch Changed Reference Type https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0 No Types Assigned https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0 Patch Changed Reference Type https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f No Types Assigned https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f Patch Changed Reference Type https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f No Types Assigned https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f 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/2c784a500f5edd337258b0fdb2f31bc9abde1a23 Added Reference https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c Added Reference https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0 Added Reference https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f -
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: netfilter: nftables: Fix a memleak from userdata error path in new objects Release object name if userdata allocation fails. Added Reference Linux https://git.kernel.org/stable/c/2c784a500f5edd337258b0fdb2f31bc9abde1a23 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/59fa98bfa1f4013d658d990cac88c87b46ff410c [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/dd3bebf515f336214a91994348a2b86b9a1d3d7f [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/85dfd816fabfc16e71786eda0a33a7046688b5b0 [No types assigned]