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Security Advisories

SUMMARY

Moxa’s Response Regarding the Dirty Pipe Vulnerability

  • Security Advisory ID: MPSA-220502
  • Version: V1.0
  • Release Date: Jun 03, 2022
  • Reference:

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Moxa is investigating to determine if any of our products are affected by this vulnerability. At the time of publication, none of Moxa’s products are affected.

Moxa's Product Security Incident Response Team (PSIRT) will keep monitoring the situation and if there are any updates to the status of the vulnerability that affects Moxa's products, we will provide an update immediately.

AFFECTED PRODUCTS AND SOLUTIONS

Affected Products:

Moxa is investigating the vulnerability and has determined that none of our products are currently affected.

Solutions:

Currently, no workarounds or software updates are required for this vulnerability.

 

Revision History:

VERSION DESCRIPTION RELEASE DATE
1.0 First Release June 3, 2022
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