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7.8
HIGH CVSS 3.1
CVE-2023-6111
Use-after-free in Linux kernel's netfilter: nf_tables component
Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

INFO

Published Date :

Nov. 14, 2023, 2:15 p.m.

Last Modified :

March 20, 2025, 4:59 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2023-6111 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 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
Update the Linux kernel to address a use-after-free vulnerability.
  • Update the affected kernel packages.
  • Reboot the system to apply the updates.
Public PoC/Exploit Available at Github

CVE-2023-6111 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-2023-6111.

URL Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 Patch
https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 Patch
https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/ Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/ Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/ Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/ Release Notes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 Patch
https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 Patch
https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/ Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/ Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/ Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/ Release Notes
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-6111 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-2023-6111 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).

Profile Photo
x-s-g/Vuln-Intro

None

C Python HTML

Updated: 3 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 31, 2025, 2:09 p.m. This repo has been linked 11 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-6111 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-2023-6111 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.

  • Modified Analysis by [email protected]

    Mar. 20, 2025

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2025

    Action Type Old Value New Value
    Changed Description A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630. A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
    Added Reference https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/
  • Modified Analysis by [email protected]

    Aug. 27, 2024

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/ Release Notes
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/ Release Notes
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/ Release Notes
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/ Release Notes
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6 up to (excluding) 6.7 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15.134 up to (excluding) 5.15.140 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.1.56 up to (excluding) 6.1.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.5.6 up to (excluding) 6.5.13 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6 up to (excluding) 6.6.3
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 05, 2024

    Action Type Old Value New Value
    Added Reference Google Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/ [No types assigned]
    Added Reference Google Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/ [No types assigned]
  • CVE Modified by [email protected]

    Dec. 04, 2023

    Action Type Old Value New Value
    Added Reference Google Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/ [No types assigned]
    Added Reference Google Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/ [No types assigned]
  • Initial Analysis by [email protected]

    Nov. 18, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 Patch
    Changed Reference Type https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 No Types Assigned https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 Patch
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6 up to (excluding) 6.7
  • CVE Received by [email protected]

    Nov. 14, 2023

    Action Type Old Value New Value
    Added Description A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    Added Reference Google Inc. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 [No types assigned]
    Added Reference Google Inc. https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 [No types assigned]
    Added CWE Google Inc. CWE-416
    Added CVSS V3.1 Google Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.02 }} 0.01%

score

0.04049

percentile