CVE-2020-10767

CVE Details

Release Date:	2020-09-15
Impact:	None	What is this?

Description

A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. The highest threat from this vulnerability is to confidentiality.

See more information about CVE-2020-10767 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:	5.5
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	None
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5805	2020-08-10
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5844	2020-09-11
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5845	2020-09-11
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5885	2020-10-12
Oracle Linux version 8 (kernel)	ELSA-2020-3010	2020-07-24
Oracle Linux version 8 (kernel-uek)	ELSA-2020-5805	2020-08-10