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Ubuntu: 6434-1 Moderate: PMIx File Overwrite And Escalation Risk

ubuntu
Calendar Grey October 18, 2023
Dist Ubuntu Esm H88
A vulnerability in PMIx may allow for unintended file overwrites and potential escalation of privileges on Ubuntu platforms due to a race condition. Please ensure you update immediately.
PMIx could be made to overwrite files.

Summary

PMIx could be made to overwrite files.

Software Description:

- pmix: Process Management Interface (Exascale) library - tools

Details:

Francois Diakhate discovered that PMIx did not properly handle race

conditions in the pmix library, which could lead to unwanted privilege

escalation. An attacker could possibly use this issue to obtain ownership

of an arbitrary file on the filesystem, under the default configuration

of the application.

Topics%20covered

Topics Covered

security advisory moderate file overwrite race condition ubuntu escalation risk pmix

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
   libpmix-bin                     4.1.2-2ubuntu1+esm1
   libpmix2                        4.1.2-2ubuntu1+esm1
   python3-pmix                    4.1.2-2ubuntu1+esm1

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
   libpmi1-pmix                    3.1.5-1ubuntu0.1~esm1
   libpmi2-pmix                    3.1.5-1ubuntu0.1~esm1
   libpmix2                        3.1.5-1ubuntu0.1~esm1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libpmi1-pmix                    2.1.1~rc1-1ubuntu0.1~esm1
   libpmi2-pmix                    2.1.1~rc1-1ubuntu0.1~esm1
   libpmix2                        2.1.1~rc1-1ubuntu0.1~esm1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6434-1

CVE-2023-41915

Ubuntu Security Notice USN-6434-1

Topics%20covered

Topics Covered

security advisory moderate file overwrite race condition ubuntu escalation risk pmix

Package Information

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