CVE-2020-25643

CVE Details

Release Date:	2020-10-06
Impact:	None	What is this?

Description

A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. 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.

See more information about CVE-2020-25643 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.2
Vector String:	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	High
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2020-5912	2020-11-06
Oracle Linux version 7 (kernel)	ELSA-2020-5437	2020-12-16
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5912	2020-11-06
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5913	2020-11-10
Oracle Linux version 8 (kernel)	ELSA-2021-1578	2021-05-25
Oracle VM version 3.4 (kernel-uek)	OVMSA-2020-0047	2020-11-06