Vulnerability Monitor

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CVE-2020-27786

A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Published

2020-12-11T05:15:12.263

Last Modified

2024-11-21T05:21:49.943

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.4.224 Yes
Operating System linux linux_kernel < 4.9.224 Yes
Operating System linux linux_kernel < 4.14.181 Yes
Operating System linux linux_kernel < 4.19.124 Yes
Operating System linux linux_kernel < 5.4.42 Yes
Operating System linux linux_kernel < 5.6.14 Yes
Application redhat openshift_container_platform 4.4 Yes
Application redhat openshift_container_platform 4.5 Yes
Application redhat openshift_container_platform 4.6 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_mrg 2.0 Yes
Application netapp cloud_backup - Yes
Hardware netapp solidfire_baseboard_management_controller - Yes
References