CVE-2020-25643
Public on 2020-10-06
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
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2020-10-26 | ALAS-2020-1437 | Fixed |
| Amazon Linux 2 - Core | kernel | 2020-10-22 | ALAS2-2020-1520 | Fixed |
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 | CVSSv2 | 7.5 | AV:N/AC:M/Au:S/C:P/I:P/A:C |
| NVD | CVSSv3 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |