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CVE-2020-14385

CVE information

Published

3 years ago

Last Modified

5 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

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Description

A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability..

CVSSv2.0 Score

Severity
Medium
Base Score
4.7/10
Exploit Score
3.4/10
Access Vector
Local
Access Complexity
Medium
Authentication Required
None
Impact Score
6.9/10
Confidentiality Impact
None
Availability Impact
Complete
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
5.5/10
Exploit Score
1.8/10
Access Vector
Local
Access Complexity
Low
Privileges Required
Low
Impact Score
3.6/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:5.9.0:-:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
- 5.9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
  Yes
- -

References