SB20230818230 - Fedora 37 update for runc 

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Main Vulnerability Database SB20230818230

SB20230818230 - Fedora 37 update for runc

Published: August 18, 2023

Security Bulletin ID SB20230818230
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Improper access control (CVE-ID: CVE-2019-19921)

The vulnerability allows a local user to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions, related to libcontainer/rootfs_linux.go in runc. A local user with ability to spawn two containers with custom volume-mount configurations, and run custom images can escalate privileges on the system.


2) Improper access control (CVE-ID: CVE-2023-27561)

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to improper access restrictions in the libcontainer/rootfs_linux.go. A local user can gain elevated privileges on the target system.


Remediation

Install update from vendor's website.

References