[gentoo-announce] [ GLSA 202107-50 ] Singularity: Remote code execution

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Severity: High Title: Singularity: Remote code execution Date: July 22, 2021 Bugs: #792465 ID: 202107-50
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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 ——————————————————————- 1 sys-cluster/singularity < 3.7.4 >= 3.7.4
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 ==========
[ 1 ] CVE-2021-32635 nvd.nist.gov/vuln/detail/CVE-2021-32635
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
security.gentoo.org/glsa/202107-50
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 bugs.gentoo.org.
License =======
Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons – Attribution / Share Alike license.
creativecommons.org/licenses/by-sa/2.5