CVE-2020-27825

Public on 2021-02-16
Modified on 2021-02-19
Description
A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel. There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
Severity
Medium
CVSS v3 Base Score
6.7
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2021-02-17 18:07 ALAS2-2021-1600
Amazon Linux 1 kernel 2021-02-16 00:13 ALAS-2021-1480

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 5.4 AV:L/AC:M/Au:N/C:P/I:N/A:C
NVD CVSSv3 5.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H