CVE-2020-14385

Advisory lineage Upstream: 0 Downstream: 18
Modified
Published: 15 Sept 2020, 21:14
Last modified:04 Aug 2024, 12:46

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.12% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Sept 2020, 21:14
Published
Vulnerability first disclosed
04 Aug 2024, 12:46
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.7AV:L/AC:M/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.12%• Percentile: 30%

Techniques & Countermeasures

  • CWE-131•Incorrect Calculation of Buffer Size

    The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

Affected Systems

  • canonical•ubuntu_linux

    18.04 | 20.04

  • debian•debian_linux

    9.0

  • linux kernel•kernel

    < 5.9-rc4

  • linux•linux_kernel

    < 5.9.0 | 5.9.0 | 5.9.0:rc1 | 5.9.0:rc2 | 5.9.0:rc3

References (5)