Executive Summary

Informations
Name CVE-2022-49844 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:N/A:H
Overall CVSS Score 7.1
Base Score 7.1 Environmental Score 7.1
impact SubScore 5.2 Temporal Score 7.1
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None 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:

can: dev: fix skb drop check

In commit a6d190f8c767 ("can: skb: drop tx skb if in listen only mode") the priv->ctrlmode element is read even on virtual CAN interfaces that do not create the struct can_priv at startup. This out-of-bounds read may lead to CAN frame drops for virtual CAN interfaces like vcan and vxcan.

This patch mainly reverts the original commit and adds a new helper for CAN interface drivers that provide the required information in struct can_priv.

[mkl: patch pch_can, too]

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49844

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3564

Sources (Detail)

https://git.kernel.org/stable/c/386c49fe31ee748e053860b3bac7794a933ac9ac
https://git.kernel.org/stable/c/ae64438be1923e3c1102d90fd41db7afcfaf54cc
Source Url

Alert History

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0
1
2
Date Informations
2025-06-24 02:14:58
  • Multiple Updates
2025-05-27 13:23:59
  • Multiple Updates
2025-05-27 02:12:09
  • First insertion