SB2020012105 - Race condition in Gentoo Portage



SB2020012105 - Race condition in Gentoo Portage

Published: January 21, 2020 Updated: May 25, 2020

Security Bulletin ID SB2020012105
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Race condition (CVE-ID: CVE-2019-20384)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition. A local user can place a Trojan horse plugin in the "/usr/lib64/nagios/plugins" directory by leveraging access to the nagios user account, because this directory is writable in between a call to emake and a call to fowners.


Remediation

Install update from vendor's website.