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CVE-2021-33656

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 05-01-2021 11:00
Last modified: - 05-01-2021 11:00
Total changes: - 4

Description

CVE-2021-33656 kernel: when setting font with malicious data by ioctl PIO_FONT, kernel will write memory out of bounds

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Low
Attack complexity
Physical
Attack vector
High
Availability
High
Confidentiality
High
Integrity
None
Privileges required
Unchanged
Scope
None
User interaction
6.8
Base score
Exploitability score
Impact score
 

Verification logic

OR
AND
product=kernel AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=6
AND
product=kernel AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=7
AND
product=kernel-rt AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=7
AND
product=kernel AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=8
AND
product=kernel-rt AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=8
AND
product=kernel AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=9
AND
product=kernel-rt AND version=
vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=9
 

Reference

 


Keywords

REDHAT

 

CVE-2021-33656

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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