CVE-2021-33655

CVSS V2 None CVSS V3 Medium 6.7

Description

When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.

Overview

CVE ID
CVE-2021-33655

Assigner
securities@openeuler.org

Vulnerability Status
Analyzed

Published Version
2022-07-18T15:15:07

Last Modified Date
2022-10-29T02:52:27

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR		5.19
cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::	1	OR
cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::	1	OR
cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::	1	OR
cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::	1	OR
cpe:2.3:o:linux:linux_kernel:5.19:rc5::::::	1	OR
cpe:2.3:o:debian:debian_linux:10.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:11.0:::::::*	1	OR

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
HIGH

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
6.7

Base Severity
MEDIUM

Exploitability Score
0.8

Impact Score
5.9

References

Reference URL	Reference Tags
http://www.openwall.com/lists/oss-security/2022/07/19/2	Mailing List Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4	Mailing List Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html	Mailing List Third Party Advisory
https://www.debian.org/security/2022/dsa-5191	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-33655
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33655

History

Created	Old Value	New Value	Data Type	Notes
2022-07-18 16:00:19				Added to TrackCVE