Executive Summary

Informations
Name CVE-2022-49921 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-07

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

In the Linux kernel, the following vulnerability has been resolved:

net: sched: Fix use after free in red_enqueue()

We can't use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len before calling child enqueue").

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49921

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3562

Sources (Detail)

https://git.kernel.org/stable/c/170e5317042c302777ed6d59fdb84af9b0219d4e
https://git.kernel.org/stable/c/52e0429471976785c155bfbf51d80990c6cd46e2
https://git.kernel.org/stable/c/5960b9081baca85cc7dcb14aec1de85999ea9d36
https://git.kernel.org/stable/c/795afe0b9bb6c915f0299a8e309936519be01619
https://git.kernel.org/stable/c/8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9
https://git.kernel.org/stable/c/a238cdcf2bdc72207c74375fc8be13ee549ca9db
https://git.kernel.org/stable/c/e877f8fa49fbccc63cb2df2e9179bddc695b825a
https://git.kernel.org/stable/c/fc4b50adb400ee5ec527a04073174e8e73a139fa
Source Url

Alert History

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0
1
2
Date Informations
2025-06-24 02:15:07
  • Multiple Updates
2025-05-27 13:24:08
  • Multiple Updates
2025-05-27 02:13:14
  • First insertion