5.5
MEDIUM CVSS 3.1
CVE-2022-48639
Linux net sched Refcount Leak Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix possible refcount leak in tc_new_tfilter() tfilter_put need to be called to put the refount got by tp->ops->get to avoid possible refcount leak when chain->tmplt_ops != NULL and chain->tmplt_ops != tp->ops.

INFO

Published Date :

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

Last Modified :

Jan. 13, 2025, 7:58 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2022-48639 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
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
Apply the latest kernel updates to address the Linux net sched refcount vulnerability.
  • Update the affected kernel packages.
  • Reboot the system to apply the update.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-48639 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-2022-48639 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-2022-48639 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48639 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. 13, 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 NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.4.215 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 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/0559d91ee3a2cd81b15ad5cd507539d6da867f88 No Types Assigned https://git.kernel.org/stable/c/0559d91ee3a2cd81b15ad5cd507539d6da867f88 Patch
    Changed Reference Type https://git.kernel.org/stable/c/0559d91ee3a2cd81b15ad5cd507539d6da867f88 No Types Assigned https://git.kernel.org/stable/c/0559d91ee3a2cd81b15ad5cd507539d6da867f88 Patch
    Changed Reference Type https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596 No Types Assigned https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596 Patch
    Changed Reference Type https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596 No Types Assigned https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596 Patch
    Changed Reference Type https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a No Types Assigned https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a Patch
    Changed Reference Type https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a No Types Assigned https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a Patch
    Changed Reference Type https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5 No Types Assigned https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5 Patch
    Changed Reference Type https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5 No Types Assigned https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5 Patch
    Changed Reference Type https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7 No Types Assigned https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7 Patch
    Changed Reference Type https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7 No Types Assigned https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7 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/0559d91ee3a2cd81b15ad5cd507539d6da867f88
    Added Reference https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596
    Added Reference https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a
    Added Reference https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5
    Added Reference https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7
  • 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: net: sched: fix possible refcount leak in tc_new_tfilter() tfilter_put need to be called to put the refount got by tp->ops->get to avoid possible refcount leak when chain->tmplt_ops != NULL and chain->tmplt_ops != tp->ops.
    Added Reference kernel.org https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0559d91ee3a2cd81b15ad5cd507539d6da867f88 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5 [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