SB2020012105 - Race condition in Gentoo Portage

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Main Vulnerability Database SB2020012105

SB2020012105 - Race condition in Gentoo Portage

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

Security Bulletin ID SB2020012105
CSH 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 vulnerability.


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

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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.

References