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Article Number: 000192046


DSA-2021-180: Dell PowerScale OneFS Security Update for Multiple Vulnerabilities.

Summary: Dell PowerScale OneFS remediation is available for multiple security vulnerabilities that may be exploited by malicious users to compromise the affected system.

Article Content


Impact

Medium

Details

Proprietary Code CVE Description CVSS Base Score CVSS Vector String
CVE-2021-36305 Dell PowerScale OneFS contains an Unsynchronized Access to Shared Data in a Multithreaded Context in SMB CA handling. An authenticated user of SMB on a cluster with CA may potentially exploit this vulnerability, leading to a denial of service over SMB. 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 
Third-party Component CVE More information
FreeBSD CVE-2021-29626 https://nvd.nist.gov/vuln/detail/CVE-2021-29626
In OneFS, a copy-on-write logic failed to invalidate shared memory page mappings between multiple processes which amy allow an unprivileged process to maintain a mapping after it is freed, allowing the process to read private data belonging to other processes or the kernel.
Proprietary Code CVE Description CVSS Base Score CVSS Vector String
CVE-2021-36305 Dell PowerScale OneFS contains an Unsynchronized Access to Shared Data in a Multithreaded Context in SMB CA handling. An authenticated user of SMB on a cluster with CA may potentially exploit this vulnerability, leading to a denial of service over SMB. 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 
Third-party Component CVE More information
FreeBSD CVE-2021-29626 https://nvd.nist.gov/vuln/detail/CVE-2021-29626
In OneFS, a copy-on-write logic failed to invalidate shared memory page mappings between multiple processes which amy allow an unprivileged process to maintain a mapping after it is freed, allowing the process to read private data belonging to other processes or the kernel.

Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.

Affected Products and Remediation

CVEs Addressed  Affected Versions Updated Versions Link to Update
CVE-2021-36305 8.2.0, 8.2.1, 9.0.0.x, 9.2.0.x, and 9.1.1.x Upgrade your version of OneFS PowerScale OneFS Downloads Area
8.2.2, 9.1.0.x , and 9.2.1.x Download and install the latest RUP
CVE-2021-29626 8.2.0, 8.2.1, 9.0.0.x, 9.2.0.x, and 9.1.1.x Upgrade your version of OneFS
8.2.x, 9.1.0.x , and 9.2.1.x Download and install the latest RUP
CVEs Addressed  Affected Versions Updated Versions Link to Update
CVE-2021-36305 8.2.0, 8.2.1, 9.0.0.x, 9.2.0.x, and 9.1.1.x Upgrade your version of OneFS PowerScale OneFS Downloads Area
8.2.2, 9.1.0.x , and 9.2.1.x Download and install the latest RUP
CVE-2021-29626 8.2.0, 8.2.1, 9.0.0.x, 9.2.0.x, and 9.1.1.x Upgrade your version of OneFS
8.2.x, 9.1.0.x , and 9.2.1.x Download and install the latest RUP

Workarounds and Mitigations

  Workarounds or Mitigations
CVE-2021-36305 Disabling Continuous Availability (CA) on all SMB shares that has it enabled prevents the issue.
CVE-2021-29626 Disallow ISI_PRIV_LOGIN_CONSOLE and ISI_PRIV_LOGIN_SSH privileges to non-administrative users.

Revision History

RevisionDateDescription
1.030 Sep 2021 Initial Release

Related Information

Dell Security Advisories and Notices
Dell Vulnerability Response Policy
CVSS Scoring Guide


The information in this Dell Technologies Security Advisory should be read and used to assist in avoiding situations that may arise from the problems described herein. Dell Technologies distributes Security Advisories to bring important security information to the attention of users of the affected product(s). Dell Technologies assesses the risk based on an average of risks across a diverse set of installed systems and may not represent the actual risk to your local installation and individual environment. It is recommended that all users determine the applicability of this information to their individual environments and take appropriate actions. The information set forth herein is provided "as is" without warranty of any kind. Dell Technologies expressly disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event shall Dell Technologies, its affiliates or suppliers, be liable for any damages whatsoever arising from or related to the information contained herein or actions that you decide to take based thereon, including any direct, indirect, incidental, consequential, loss of business profits or special damages, even if Dell Technologies, its affiliates or suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation shall apply to the extent permissible under law.

Article Properties


Affected Product

Product Security Information

Last Published Date

30 Sep 2021

Version

1

Article Type

Dell Security Advisory

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