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CVE-2020-10767

Published: Sep 15, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-440
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.4%
Top 70.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Prediction Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre V2 style attack when this configuration is active. 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

kernelLinux Kernel
On-prem
Operating Systems / linux-distro
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
linux kerneloss-projectOperating Systemsaka linux, linux-kernel
novell inc.commercialUSOperating Systems
red hat inc.commercialUSOperating Systemsaka red hat
and 9 more affected products View all →

Exploitability

Official Patch Available

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21998a351512eba4ed5969006f0c55882d995ada
git.kernel.org
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10767
bugzilla.redhat.com
https://access.redhat.com/security/cve/cve-2020-10767
access.redhat.com
and 30 more references View all →

Timeline

Published
Sep 15, 2020
Last Updated
Nov 21, 2024

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