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
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2021-05-20 21:12 ALAS-2021-1503
Amazon Linux 2 kernel 2021-04-20 17:55 ALAS2-2021-1627
Amazon Linux 2 kernel 2022-01-20 23:18 ALAS2KERNEL-5.10-2022-001
Amazon Linux 2 kernel 2022-01-12 00:00 ALAS2KERNEL-5.4-2022-003

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