CVE-2020-25643

Public on 2020-10-22
Modified on 2020-10-27
Description
A flaw was found in the HDLC_PPP module of the Linux kernel. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
Medium
CVSS v3 Base Score
6.6
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2020-10-22 18:07 ALAS2-2020-1520
Amazon Linux 1 kernel 2020-10-26 18:08 ALAS-2020-1437

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.6 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 7.5 AV:N/AC:M/Au:S/C:P/I:P/A:C