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AUSCERT External Security Bulletin Redistribution
ESB-2020.4001
Intel Visual Compute Accelerator 2 Advisory
11 November 2020
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AusCERT Security Bulletin Summary
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Product: Intel Visual Compute Accelerator 2
Publisher: Intel
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8677 CVE-2020-8676
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00368.html
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Intel ID: INTEL-SA-00368
Advisory Category: Hardware
Impact of vulnerability : Escalation of Privilege, Denial of Service
Severity rating : MEDIUM
Original release: 11/10/2020
Last revised: 11/10/2020
Summary:
A potential security vulnerability in the Intel Visual Compute Accelerator 2
may allow escalation of privilege or denial of service. Intel is providing
documentation updates to partially mitigate this potential vulnerability.
Vulnerability Details
CVEID: CVE-2020-8676
Description: Improper access control in the Intel(R) Visual Compute Accelerator
2, all versions, may allow a privileged user to potentially enable escalation
of privilege via local access.
CVSS Base Score: 6.0 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
CVEID: CVE-2020-8677
Description: Improper access control in the Intel(R) Visual Compute Accelerator
2, all versions, may allow a privileged user to potentially enable denial of
service via local access.
CVSS Base Score: 4.4 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected Products:
Intel Visual Compute Accelerator 2, all versions.
Recommendations:
CVEID: CVE-2020-8676
Intel recommends that systems using the Intel Visual Compute Accelerator 2 card
enable DMA protection, including pre-boot phases, as described in the following
white paper:
Using IOMMU for DMA Protection in UEFI Firmware
https://software.intel.com/sites/default/files/managed/8d/88/
intel-whitepaper-using-iommu-for-dma-protection-in-uefi.pdf
CVEID: CVE-2020-8677
Intel will not be releasing an update for this issue. Intel recommends limiting
privileged access of host systems to trusted individuals, as part of normal
security practices.
Acknowledgements:
This issue was found internally by Intel employees. Intel we would like to
thank Hareesh Khattri.
Intel, and nearly the entire technology industry, follows a disclosure practice
called Coordinated Disclosure, under which a cybersecurity vulnerability is
generally publicly disclosed only after mitigations are available.
Revision History
Revision Date Description
1.0 11/10/2020 Initial Release
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