What is CVE-2020-10766?

CVE-2020-10766 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2020-10766 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-10766?

CVE-2020-10766 has a CVSS score of 5.5 out of 10, rated Medium severity. 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-2020-10766?

No patch is currently available for CVE-2020-10766. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-10766 actively exploited?

CVE-2020-10766 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2020-10766

Medium

A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

Package Linux Kernel

Published 2020-09-15

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-2020-10766 is classified as CWE-440

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

References

The following references provide additional information about CVE-2020-10766 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10766

Issue Tracking Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbbe2ad02e9df26e372f38cc3e70dab9222c832e
Patch

Details

CVE ID CVE-2020-10766

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2020-09-15

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-10766?

CVE-2020-10766 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2020-10766 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-10766?

CVE-2020-10766 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-2020-10766?

No patch is currently available for CVE-2020-10766. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-10766 actively exploited?

No — CVE-2020-10766 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.