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Status published
Medium
CVE-2020-25656
A flaw was found in the Linux kernel. A use-after-free...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1888726
- https://lkml.org/lkml/2020/10/29/528
- https://lkml.org/lkml/2020/10/16/84
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
- https://www.starwindsoftware.com/security/sw-20210325-0006/
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Affected Vendor
Affected Software
kernel
Vulnerable Versions:
kernel 5.10-rc2
Timeline
Official Publish:
December 2nd, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N