GLSA 202107-50: Singularity: Remote code execution

http://security.gentoo.org/

Severity:	high
Title:	Singularity: Remote code execution
Date:	07/22/2021
Bugs:	#792465
ID:	202107-50

Synopsis

A vulnerability in Singularity could result in remote code execution.

Background

Singularity is the container platform for performance sensitive workloads.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-cluster/singularity	< 3.7.4	>= 3.7.4	All supported architectures

Description

Singularity always uses the default remote endpoint, ‘cloud.syslabs.io’, for action commands using the ‘library://’ URI rather than the configured remote endpoint.

Impact

An attacker that that can push a malicious container to the default remote endpoint could execute code on hosts that fetch the container.

Workaround

There is no known workaround at this time.

Resolution

All Singularity users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-cluster/singularity-3.7.4"

References

CVE-2021-32635

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202107-50.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.