CVE-2020-12826

Public on 2020-05-11
Modified on 2020-07-15
Description
A flaw was found in the Linux kernel loose validation of child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Severity
Medium
CVSS v3 Base Score
5.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2020-06-16 18:21 ALAS2-2020-1440
Amazon Linux 1 kernel 2020-06-23 06:02 ALAS-2020-1382
Amazon Linux 1 kernel 2020-05-11 20:43 ALAS-2020-1366
Amazon Linux 1 kernel 2020-06-23 06:02 ALAS-2020-1382
Amazon Linux 1 kernel 2020-05-11 20:43 ALAS-2020-1366

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD CVSSv3 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD CVSSv2 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P