CVE-2020-10768

Medium

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.

Package Linux Kernel
Published 2020-09-16
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-440

CVE-2020-10768 is classified as CWE-440

See CWE-440 on MITRE CWE for full details on this weakness type.

Frequently asked questions

  • What is CVE-2020-10768?

    CVE-2020-10768 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2020-10768 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2020-10768?

    CVE-2020-10768 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N .

  • Is there a patch available for CVE-2020-10768?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2020-10768 patch availability.

  • Is CVE-2020-10768 actively exploited?

    No. CVE-2020-10768 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.