Security restrictions bypass in Intel Core i7 processor 45nm - CVE-2020-8698

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Main Vulnerability Database Vulnerabilities #VU48629

Security restrictions bypass in Intel Core i7 processor 45nm - CVE-2020-8698

Published: November 12, 2020 / Updated: November 24, 2020


Vulnerability identifier: #VU48629
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8698
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to improper isolation of shared resources in some Intel(R) Processors. A local user can gain access to sensitive information on the system.


Affected software

Intel Core i7 processor 45nm
Arch Linux
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for x86_64
Anolis OS
Ubuntu
Fedora
microcode_ctl (Red Hat package)
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
microcode_ctl
intel-microcode (Ubuntu package)
Data Computing Appliance (DCA)

How to mitigate CVE-2020-8698

Install updates from vendor's website.

microcode_ctl (Red Hat package) - addressed in versions 1.17-17.34.el6_5, 1.17-19.32.el6_6, 1.17-33.31.el6_10, 2.1-12.34.el7_2, 2.1-12.39.el7_2, 2.1-16.37.el7_3, 2.1-16.42.el7_3, 2.1-22.36.el7_4, 2.1-22.41.el7_4, 2.1-47.18.el7_6, 2.1-47.23.el7_6, 2.1-53.13.el7_7, 2.1-53.18.el7_7, 2.1-73.2.el7_9, 2.1-73.11.el7_9, 20180807a-2.20201112.1.el8_0, 20190618-1.20201112.1.el8_1, 20190618-1.20210608.1.el8_1, 20191115-4.20201112.1.el8_2, 20191115-4.20210608.1.el8_2, 20200609-2.20201027.1.el8_3, 20210216-1.20210608.1.el8_4
Data Computing Appliance (DCA) - addressed in versions Firmware tool 3H00, 4.2.1.0
microcode_ctl - addressed in versions 2.1-39.2.fc31, 2.1-39.2.fc32, 2.1-39.3.fc32, 2.1-42.fc33, 2.1-43.fc33
intel-microcode (Ubuntu package) - addressed in versions 3.20201110.0ubuntu0.16.04.1, 3.20201110.0ubuntu0.16.04.2, 3.20201110.0ubuntu0.18.04.1, 3.20201110.0ubuntu0.18.04.2, 3.20201110.0ubuntu0.20.04.1, 3.20201110.0ubuntu0.20.04.2, 3.20201110.0ubuntu0.20.10.1, 3.20201110.0ubuntu0.20.10.2, 3.20210216.0ubuntu0.18.04.1, 3.20210216.0ubuntu0.20.04.1, 3.20210216.0ubuntu0.20.10.1, 3.20210216.0ubuntu0.21.04.1
microcode_ctl - addressed in versions 20191115-4.20210608.1, 20210216-1.20210608.1

External References

Related Security Bulletins