CVE-2021-33027: Critical severity singularity vulnerability

Published Jul 19, 2021
·
Updated

Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.

Affected Software

4 affected components
Sylabs Singularity>=1.2.0<1.2.6
Sylabs Singularity>=1.4.0<1.4.4
Sylabs Singularity>=1.5.0<1.5.4
Sylabs Singularity>=1.6.0<1.6.3

Event History

Jul 19, 2021
CVE Published
via MITRE·11:52 AM
Data Sourced
via MITRE·11:52 AM
Description
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2021-33027?

CVE-2021-33027 is a vulnerability in Sylabs Singularity Enterprise through version 1.6.2 that is caused by insufficient entropy in a nonce.

2

How severe is CVE-2021-33027?

CVE-2021-33027 has a severity rating of 9.8 out of 10, making it a critical vulnerability.

3

Which software versions are affected by CVE-2021-33027?

Versions between 1.2.0 and 1.6.2 of Sylabs Singularity Enterprise are affected by CVE-2021-33027.

4

How can I fix CVE-2021-33027?

To fix CVE-2021-33027, it is recommended to update Sylabs Singularity Enterprise to a version beyond 1.6.2.

5

Where can I find more information about CVE-2021-33027?

You can find more information about CVE-2021-33027 at the following links: [Medium](https://medium.com/sylabs) and [Sylabs support](https://support.sylabs.io/a/solutions/articles/42000086439).

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203