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CVE-2021-41839

Common vulnerabilities & exposures (CVE)

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Published at: - 03-02-2022 03:15
Last modified: - 29-03-2022 06:35
Total changes: - 5

Description

An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Low
Attack complexity
Local
Attack vector
High
Availability
High
Confidentiality
High
Integrity
High
Privileges required
Changed
Scope
None
User interaction
8.2
Base score
1.5
6.0
Exploitability score
Impact score
 

Verification logic

OR
OR
vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.1 AND versionEndExcluding=5.16.25
OR
vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.2 AND versionEndExcluding=5.26.25
OR
vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.3 AND versionEndExcluding=5.35.25
OR
vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.4 AND versionEndExcluding=5.43.25
OR
vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.5 AND versionEndExcluding=5.51.25
 

Reference

 


Keywords

NVD

 

CVE-2021-41839

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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