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CVE-2020-25656

Public on 2020-12-02
Modified on 2021-01-13
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.

Severity
Medium
See what this means
CVSS v3 Base Score
4.1
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2021-01-12 22:51 ALAS-2021-1461
Amazon Linux 2 - Core kernel 2020-12-08 20:55 ALAS2-2020-1566
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-20 19:50 ALAS2KERNEL-5.4-2022-018

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD CVSSv2 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N
NVD CVSSv3 4.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N