[ GLSA 202105-33 ] containerd

[GLSA]

Gentoo Linux Security Advisory

Title: containerd: Multiple vulnerabilities (GLSA 202105-33)
Severity: high
Exploitable: local
Date: 2021-05-26
Bug(s): #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: app-emulation/containerd
Vulnerable: < 1.4.4
Unaffected: >= 1.4.4
Architectures: 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: