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CVE-2020-10768

Published: Sep 15, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-440
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.4%
Top 68.7%
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 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.

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
linux kernellinux
On-premOS
Operating Systems
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
linux kerneloss-projectOperating Systemsaka linux, linux-kernel
linuxoss-projectOperating Systemsaka the 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=4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bf
git.kernel.org
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10768
bugzilla.redhat.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-074-07.json
raw.githubusercontent.com
and 227 more references View all →

Timeline

Published
Sep 15, 2020
Last Updated
Nov 21, 2024

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