CVE-2020-25670

Public on 2021-04-20
Modified on 2021-07-15
Description
A use-after-free flaw was found in the Linux kernel's NFC LLCP protocol implementation in the way the user performs manipulation with an unknown input for the llcp_sock_bind() function. This flaw allows a local user to crash or escalate their privileges on the system.
Severity
Important
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2021-04-20 17:55 ALAS2-2021-1627
Amazon Linux 1 kernel 2021-05-20 21:12 ALAS-2021-1503

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
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