Executive Summary

Informations
Name CVE-2023-4208 First vendor Publication 2023-09-06
Vendor Cve Last vendor Modification 2025-02-13

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation.

When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.

We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4208

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 1
Os 3613

Sources (Detail)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://kernel.dance/3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://www.debian.org/security/2023/dsa-5492
Source Url

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Date Informations
2025-03-29 03:25:57
  • Multiple Updates
2025-03-28 13:38:19
  • Multiple Updates
2025-03-28 03:06:41
  • Multiple Updates
2025-03-19 03:02:33
  • Multiple Updates
2025-03-18 03:14:58
  • Multiple Updates
2025-03-14 03:03:02
  • Multiple Updates
2025-02-21 21:21:09
  • Multiple Updates
2025-02-13 21:21:39
  • Multiple Updates
2025-01-08 02:56:11
  • Multiple Updates
2025-01-07 02:55:48
  • Multiple Updates
2024-12-25 02:54:34
  • Multiple Updates
2024-12-12 02:57:39
  • Multiple Updates
2024-11-28 14:29:10
  • Multiple Updates
2024-11-21 21:31:27
  • Multiple Updates
2024-11-20 02:51:57
  • Multiple Updates
2024-11-14 02:52:04
  • Multiple Updates
2024-11-09 02:52:23
  • Multiple Updates
2024-10-26 02:49:51
  • Multiple Updates
2024-10-25 02:51:44
  • Multiple Updates
2024-10-23 02:51:05
  • Multiple Updates
2024-10-03 02:46:47
  • Multiple Updates
2024-10-02 02:45:09
  • Multiple Updates
2024-09-15 02:43:17
  • Multiple Updates
2024-09-12 02:42:47
  • Multiple Updates
2024-09-04 02:44:22
  • Multiple Updates
2024-08-22 02:42:30
  • Multiple Updates
2024-08-02 13:51:23
  • Multiple Updates
2024-08-02 01:33:54
  • Multiple Updates
2024-03-12 13:40:20
  • Multiple Updates
2024-02-15 21:27:57
  • Multiple Updates
2024-02-02 02:48:24
  • Multiple Updates
2024-02-01 12:30:59
  • Multiple Updates
2024-01-12 00:27:54
  • Multiple Updates
2023-12-29 02:37:22
  • Multiple Updates
2023-11-22 02:35:56
  • Multiple Updates
2023-10-11 02:31:45
  • Multiple Updates
2023-09-29 13:29:45
  • Multiple Updates
2023-09-12 00:27:43
  • Multiple Updates
2023-09-10 17:27:19
  • Multiple Updates
2023-09-07 09:27:17
  • Multiple Updates
2023-09-06 21:27:19
  • First insertion