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CVE-2020-10766

Published: Sep 15, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-440
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.5%
Top 63.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-440NVD-CWE-noinfo

Affected Products

SUSE Linux Enterprise Server for SAP ApplicationsNovell Inc.
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
SUSE Enterprise StorageNovell Inc.
On-prem
Databases / data-warehouse-analytics
SUSE Linux Enterprise High AvailabilityNovell Inc.
On-premOS
Operating Systems / linux-distro
Suse Linux Enterprise ServerNovell Inc.
On-premOS
Operating Systems / linux-distro
novell inc.commercialUSOperating Systems
red hat inc.commercialUSOperating Systemsaka red hat
and 9 more affected products View all →

Exploitability

Official Patch Available

References

https://access.redhat.com/security/cve/cve-2020-10766
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1845840
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10766
bugzilla.redhat.com
and 30 more references View all →

Timeline

Published
Sep 15, 2020
Last Updated
Nov 21, 2024

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