Description
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.
Published: 2020-09-15
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2323-1 linux-4.19 new package
EUVD EUVD EUVD-2020-3181 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.
Ubuntu USN Ubuntu USN USN-4427-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4439-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4440-1 linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4483-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4485-1 Linux kernel vulnerabilities
History

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Subscriptions

Linux Linux Kernel
Redhat Enterprise Linux Rhel E4s Rhel Eus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T11:14:15.011Z

Reserved: 2020-03-20T00:00:00.000Z

Link: CVE-2020-10766

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-09-15T23:15:12.143

Modified: 2024-11-21T04:56:01.543

Link: CVE-2020-10766

cve-icon Redhat

Severity : Important

Publid Date: 2020-06-09T17:00:00Z

Links: CVE-2020-10766 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses