CVE-2020-10768

Description

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
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=4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10768 issue tracking third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-10768?
CVE-2020-10768 has been scored as a medium severity vulnerability.
How to fix CVE-2020-10768?
To fix CVE-2020-10768, 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-2020-10768 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-10768 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-2020-10768?
CVE-2020-10768 affects Linux Kernel kernel.
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