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CVE-2020-25656

CVE information

Published

3 years ago

Last Modified

1 year ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

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Description

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality..

CVSSv2.0 Score

Severity
Low
Base Score
1.9/10
Exploit Score
3.4/10
Access Vector
Local
Access Complexity
Medium
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
4.1/10
Exploit Score
0.5/10
Access Vector
Local
Access Complexity
High
Privileges Required
High
Impact Score
3.6/10
Confidentiality Impact
High
Availability Impact
None
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
- 5.10
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build1253
  Yes
- -
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build1265
  Yes
- -
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build1285
  Yes
- -
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build1317
  Yes
- -
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build1358
  Yes
- -
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build1386
  Yes
- -

References