CVE-2020-25656

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
References
Link Resource
https://lkml.org/lkml/2020/10/29/528 Mailing List Patch Third Party Advisory
https://lkml.org/lkml/2020/10/16/84 Exploit Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1888726 Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List Third Party Advisory
https://www.starwindsoftware.com/security/sw-20210325-0006/ Third Party Advisory
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Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12533:*:*:*:vsphere:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12658:*:*:*:vsphere:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12859:*:*:*:vsphere:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13170:*:*:*:vsphere:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13586:*:*:*:vsphere:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13861:*:*:*:vsphere:*:*

Information

Published : 2020-12-01 17:15

Updated : 2022-10-25 10:03


NVD link : CVE-2020-25656

Mitre link : CVE-2020-25656


JSON object : View

CWE
CWE-416

Use After Free

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Products Affected

redhat

  • enterprise_linux

starwindsoftware

  • starwind_virtual_san

debian

  • debian_linux

linux

  • linux_kernel