CVE-2020-24394

Advisory lineage Upstream: 0 Downstream: 26
Modified
Published: 19 Aug 2020, 00:00
Last modified:04 Aug 2024, 15:12

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.05% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Aug 2020, 00:00
Published
Vulnerability first disclosed
04 Aug 2024, 15:12
Last Modified
Vulnerability information updated

Description

In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  • v2.0•LOW•Score: 3.6AV:L/AC:L/Au:N/C:P/I:P/A:N

EPSS Trends

Current EPSS score: 0.05%• Percentile: 16%

Techniques & Countermeasures

  • CWE-732•Incorrect Permission Assignment for Critical Resource

    The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04

  • linux•linux_kernel

    < 5.7.8

  • opensuse•leap

    15.1

  • oracle•sd-wan_edge

    8.2

  • starwindsoftware•starwind_virtual_san

    v8:build12533 | v8:build12658 | v8:build12859 | v8:build13170 | v8:build13586 | v8:build13861

References (10)