An Apptainer security update has been released for Gentoo Linux.

GLSA 202210-19 : Apptainer: Lack of Digital Signature Hash Verification

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 202210-19
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Low
Title: Apptainer: Lack of Digital Signature Hash Verification
Date: October 31, 2022
Bugs: #875869
ID: 202210-19

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
A vulnerability has been found in Apptainer which could result in the
usage of an unexpected of a container.

Background
=========
Apptainer is the container system for secure high-performance computing.

Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-containers/apptainer < 1.1.2 >= 1.1.2

Description
==========
The Go module "sif" version 2.8.0 and older, which is a statically
linked dependency of Apptainer, does not verify that the hash
algorithm(s) used are cryptographically secure when verifying digital
signatures.

Impact
=====
An image whose verification relies on a cryptographically insecure hash
algorithm could be replaced, resulting in users using an image other
than the one that was expected.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Apptainer users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-containers/apptainer-1.1.2"

References
=========
[ 1 ] CVE-2022-39237
  https://nvd.nist.gov/vuln/detail/CVE-2022-39237

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/202210-19

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.

License
======
Copyright 2022 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.

  https://creativecommons.org/licenses/by-sa/2.5