CVE-2020-25668

Public on 2020-12-08
Modified on 2021-01-13
Description
A use-after-free flaw was found in the Linux kernel's TTY driver functionality in the way the user triggers the con_font_op function. This flaw allows a local user to crash or escalate their privileges on the system or expose sensitive information (kernel memory).
Severity
Important
CVSS v3 Base Score
7.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2020-12-08 20:55 ALAS2-2020-1566
Amazon Linux 1 kernel 2021-01-12 22:51 ALAS-2021-1461

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Amazon Linux CVSSv2 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C
NVD CVSSv2 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C
NVD CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H