CVE-2020-0423

Public on 2020-11-09
Modified on 2020-11-16
Description
A use-after-free flaw was found in the binder_release_work of binder.c due to improper locking. This flaw can lead to the local escalation of privileges in the kernel where no additional execution privileges are needed. User interaction is not needed for exploitation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
Important
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2020-11-09 17:10 ALAS2-2020-1556
Amazon Linux 1 kernel 2020-11-14 01:22 ALAS-2020-1446

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H