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5.5
MEDIUM CVSS 3.1
CVE-2022-48642
Linux Kernel Netfilter percpu Memory Leak
Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain() It seems to me that percpu memory for chain stats started leaking since commit 3bc158f8d0330f0a ("netfilter: nf_tables: map basechain priority to hardware priority") when nft_chain_offload_priority() returned an error.

INFO

Published Date :

April 28, 2024, 1:15 p.m.

Last Modified :

Jan. 7, 2025, 4:58 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-48642 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.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
This vulnerability can be remediated by updating the Linux kernel packages.
  • Update the affected Linux kernel packages.
  • Reboot the system after 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-2022-48642.

URL Resource
https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 Patch
https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 Patch
https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac Patch
https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 Patch
https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 Patch
https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 Patch
https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac Patch
https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-48642 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-2022-48642 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-2022-48642 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-48642 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 from (including) 5.3 up to (excluding) 5.10.146 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.71 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.19.12 *cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*
    Changed Reference Type https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 No Types Assigned https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 Patch
    Changed Reference Type https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 No Types Assigned https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 Patch
    Changed Reference Type https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 No Types Assigned https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 Patch
    Changed Reference Type https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 No Types Assigned https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 Patch
    Changed Reference Type https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac No Types Assigned https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac Patch
    Changed Reference Type https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac No Types Assigned https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac Patch
    Changed Reference Type https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 No Types Assigned https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 Patch
    Changed Reference Type https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 No Types Assigned https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 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/08d7524f366a886b99b1630a24a27dd6e0d7f852
    Added Reference https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714
    Added Reference https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac
    Added Reference https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88
  • 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

    Apr. 28, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain() It seems to me that percpu memory for chain stats started leaking since commit 3bc158f8d0330f0a ("netfilter: nf_tables: map basechain priority to hardware priority") when nft_chain_offload_priority() returned an error.
    Added Reference kernel.org https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact