Headline

CVE-2021-33096: INTEL-SA-00571

Improper isolation of shared resources in network on chip for the Intel® 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access.

2 years ago

CVE

Open in Source

#vulnerability #web #amazon #dos

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Intel® 82599 Ethernet Series Advisory

**Summary: **

Potential security vulnerabilities in the Intel® 82599 Ethernet Series Controllers and Adapters may allow denial of service. Intel is releasing software updates and prescriptive guidance to address these potential vulnerabilities.

Vulnerability Details:

CVEID: CVE-2021-33096

Description: Improper isolation of shared resources in network on chip for the Intel® 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access.

CVSS Base Score: 6.5 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVEID: CVE-2021-33061

Description: Insufficient control flow management for the Intel® 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access.

CVSS Base Score: 6.5 MEDIUM

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Products:

All Intel® 82599 Ethernet Series Controllers and associated Adapters.

Recommendations:

Intel recommends following the steps below to address these issues.

For CVE-2021-33096:

Download the prescriptive guidance found in this Application Note.
Consult the Direct-Assignment Networking Fault Isolation in a Data Center Environment Prescriptive Guidance Addressing INTEL-SA-00571 Application Note.

For CVE-2021-33061:

Update Intel® 82599 Ethernet Series Controllers and associated Adapters Kernel-mode Driver versions to 5.13.4 or higher.

Updates are available for download at this location:

https://sourceforge.net/projects/e1000/files/ixgbe%20stable/5.13.4/

Acknowledgements:

Intel would like to thank Asaf Modelevsky (Amazon Web Services) for reporting these issues.

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

02/08/2022

Initial Release

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Copyright © Intel Corporation 2022

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