CVE-2020-11565

Advisory lineage Upstream: 0 Downstream: 18
Modified
Published: 06 Apr 2020, 00:08
Last modified:04 Aug 2024, 11:35

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6 MEDIUM
v3.1 (nvd)
EPSS Score
0.08% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Apr 2020, 00:08
Published
Vulnerability first disclosed
04 Aug 2024, 11:35
Last Modified
Vulnerability information updated

Description

An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”

CVSS Metrics

  • v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
  • v2.0•LOW•Score: 3.6AV:L/AC:L/Au:N/C:N/I:P/A:P

EPSS Trends

Current EPSS score: 0.08%• Percentile: 24%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04

  • linux•linux_kernel

    ≤ 5.6.2

References (12)