Security Vulnerability: Dirty Pipe attack (CVE-2022-0847)

This document (000020603) is provided subject to the disclaimer at the end of this document.

Environment

For a comprehensive list of affected products please visit the SUSE CVE announcement:
https://suse.com/security/cve/CVE-2022-0847.html

Situation

Security researcher found a vulnerability in the Linux pipe handling code, which can lead to local attackers overwrite any file that they have read access to, allowing privilege escalation.
The attack is possible due to two separate bugs, one introduced in Linux Kernel 4.9, and another introduced in the Linux Kernel 5.8.

SUSE Linux Enterprise products use Linux Kernels older than 5.8, so these are not exploitable by default.
Products based on Linux Kernel 4.12 and 5.3 will receive updates for the first bug referenced by this CVE.

Resolution

As there is no workaround available, please install the updated kernel packages containing the fix.
To install the respective patch, please use:

zypper patch --cve=CVE-2022-0847

Status

Security Alert

Additional Information

Researcher URL: https://dirtypipe.cm4all.com/

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

Document ID:000020603
Creation Date: 08-Mar-2022
Modified Date:08-Mar-2022
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