CVE-2022-1263

CVSS V2 None CVSS V3 Medium 5.5

Description

A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

Overview

CVE ID
CVE-2022-1263

Assigner
secalert@redhat.com

Vulnerability Status
Analyzed

Published Version
2022-08-31T16:15:09

Last Modified Date
2022-09-07T13:11:19

Weakness Enumerations

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

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR	5.18
cpe:2.3:o:linux:linux_kernel:5.18:rc1::::::	1	OR
cpe:2.3:o:linux:linux_kernel:5.18:rc2::::::	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*	1	OR

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://www.openwall.com/lists/oss-security/2022/04/07/1
https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4
https://access.redhat.com/security/cve/CVE-2022-1263
https://bugzilla.redhat.com/show_bug.cgi?id=2072698

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-1263
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1263

History

Created	Old Value	New Value	Data Type	Notes
2022-08-31 17:00:07				Added to TrackCVE