IM
IronMonkey Threat Research

CVE-2021-33655 MEDIUM

Published: 2022-07-18 | Last Modified: 2024-11-21 | Status: Modified

Description

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

Additional Descriptions (1)

Cuando son enviados datos maliciosos al kernel mediante ioctl cmd FBIOPUT_VSCREENINFO, el kernel escribirá memoria fuera de límites

CVSS Metrics

Base Score: 6.7 (MEDIUM)

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

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 0.8

Impact Score: 5.9

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-787
[email protected] Primary
en CWE-787

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd2dbe97a80> Operating System
linux linux_kernel 5.19 <built-in method update of dict object at 0x7fd3842bb480> Operating System
linux linux_kernel 5.19 <built-in method update of dict object at 0x7fd384238080> Operating System
linux linux_kernel 5.19 <built-in method update of dict object at 0x7fd386741a00> Operating System
linux linux_kernel 5.19 <built-in method update of dict object at 0x7fd2dbe97cc0> Operating System
linux linux_kernel 5.19 <built-in method update of dict object at 0x7fd2dbe96740> Operating System
debian debian_linux 10.0 <built-in method update of dict object at 0x7fd370378f40> Operating System
debian debian_linux 11.0 <built-in method update of dict object at 0x7fd2d8110dc0> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Yes cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References