CVE-2020-28374

Public on 2021-02-16
Modified on 2021-02-19
Description
A flaw was found in the Linux kernel's implementation of the Linux SCSI target host, where an authenticated attacker could write to any block on the exported SCSI device backing store. This flaw allows an authenticated attacker to send LIO block requests to the Linux system to overwrite data on the backing store. The highest threat from this vulnerability is to integrity. In addition, this flaw affects the tcmu-runner package, where the affected SCSI command is called.
Severity
Important
CVSS v3 Base Score
8.1
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 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD CVSSv2 5.5 AV:N/AC:L/Au:S/C:P/I:P/A:N
NVD CVSSv3 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N