GLSA 202105-33: containerd: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	containerd: Multiple vulnerabilities
Date:	05/26/2021
Bugs:	#758137, #775329
ID:	202105-33

Synopsis

Multiple vulnerabilities have been found in containerd, the worst of which could result in privilege escalation.

Background

Containerd is a daemon with an API and a command line client, to manage containers on one machine. It uses runC to run containers according to the OCI specification.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-emulation/containerd	< 1.4.4	>= 1.4.4	All supported architectures

Description

Multiple vulnerabilities have been discovered in containerd. Please review the CVE identifiers referenced below for details.

Impact

A local attacker, able to run a malicious container in the same network namespace as the shim, could possibly escalate privileges. Furthermore, an attacker could disclose sensitive information.

Workaround

There is no known workaround at this time.

Resolution

All containerd users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=app-emulation/containerd-1.4.4"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202105-33.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.