Ubuntu 4960-1: runC vulnerability | LinuxSecurity.com

Advisories

==========================================================================
Ubuntu Security Notice USN-4960-1
May 19, 2021

runc vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

runC could be made to overwrite files as the administrator.

Software Description:
- runc: Open Container Project

Details:

Etienne Champetier discovered that runC incorrectly checked mount targets.
An attacker with a malicious container image could possibly mount the host
filesystem into the container and escalate privileges.

Update instructions:

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

Ubuntu 21.04:
  runc                            1.0.0~rc93-0ubuntu1.1

Ubuntu 20.10:
  runc                            1.0.0~rc93-0ubuntu1~20.10.2

Ubuntu 20.04 LTS:
  runc                            1.0.0~rc93-0ubuntu1~20.04.2

Ubuntu 18.04 LTS:
  runc                            1.0.0~rc93-0ubuntu1~18.04.2

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

References:
  https://ubuntu.com/security/notices/USN-4960-1
  CVE-2021-30465

Package Information:
  https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1.1
  https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1~20.10.2
  https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1~20.04.2
  https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1~18.04.2

Ubuntu 4960-1: runC vulnerability

May 19, 2021

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: runC could be made to overwrite files as the administrator. Software Description: - runc: Open Container Project Details: Etienne Champetier discovered that runC incorrectly checked mount targets. An attacker with a malicious container image could possibly mount the host filesystem into the container and escalate privileges.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: runc 1.0.0~rc93-0ubuntu1.1 Ubuntu 20.10: runc 1.0.0~rc93-0ubuntu1~20.10.2 Ubuntu 20.04 LTS: runc 1.0.0~rc93-0ubuntu1~20.04.2 Ubuntu 18.04 LTS: runc 1.0.0~rc93-0ubuntu1~18.04.2 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4960-1

CVE-2021-30465

Severity
Ubuntu Security Notice USN-4960-1

Package Information

https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1.1 https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1~20.10.2 https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1~20.04.2 https://launchpad.net/ubuntu/+source/runc/1.0.0~rc93-0ubuntu1~18.04.2

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.