CVE-2022-40476

CVSS V2 None CVSS V3 Medium 5.5

Description

A null pointer dereference issue was discovered in fs/io_uring.c in the Linux kernel before 5.15.62. A local user could use this flaw to crash the system or potentially cause a denial of service.

Overview

CVE ID
CVE-2022-40476

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-09-14T21:15:10

Last Modified Date
2022-09-17T01:57:50

Weakness Enumerations

CWE	URL
CWE-476	http://cwe.mitre.org/data/definitions/476.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR		5.15.62

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/io_uring.c?h=v5.15.61&id=3746d62ecf1c872a520c4866118edccb121c44fd
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.62
https://lore.kernel.org/lkml/CAO4S-mdVW5GkODk0+vbQexNAAJZopwzFJ9ACvRCJ989fQ4A6Ow@mail.gmail.com/

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-40476
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-40476

History

Created	Old Value	New Value	Data Type	Notes
2022-09-14 22:00:09				Added to TrackCVE