CVE-2020-10767

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory kernel.org
Affected: Linux Kernel kernel
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21998a351512eba4ed5969006f0c55882d995ada patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10767 third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2020-10767?
CVE-2020-10767 has been scored as a medium severity vulnerability.
How to fix CVE-2020-10767?
To fix CVE-2020-10767, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-10767 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-10767 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-10767?
CVE-2020-10767 affects Linux Kernel kernel.
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