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ubuntuUbuntuUSN-6434-1
HistoryOct 17, 2023 - 12:00 a.m.

PMIx vulnerability

2023-10-1700:00:00
ubuntu.com
34
pmix
ubuntu
privilege escalation
filesystem
race conditions
openmpi
security vulnerability

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.001

Percentile

51.1%

Releases

  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • pmix - Development files for the PMI library (OpenMPI )

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.

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CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.001

Percentile

51.1%