CVE-2021-33638: Run copy with container in a malicious directory may cause container escaping

Published Oct 29, 2023
·
Updated

When the isula cp command is used to copy files from a container to a host machine and the container is controlled by an attacker, the attacker can escape the container.

Affected Software

3 affected components
Openeuler Isula=2.0.8-20210518.144540
Openeuler Isula=2.0.18-10
Openeuler Isula=2.1.2

Event History

Oct 29, 2023
CVE Published
07:59 AM
Data Sourced
07:59 AM
DescriptionSeverityWeakness
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-2021-33638?

CVE-2021-33638 is a vulnerability that occurs when the isula cp command is used to copy files from a container to a host machine and the container is controlled by an attacker, allowing the attacker to escape the container.

2

How does CVE-2021-33638 affect Openeuler Isula?

Openeuler Isula versions 2.0.8-20210518.144540, 2.0.18-10, and 2.1.2 are affected by CVE-2021-33638.

3

What is the severity of CVE-2021-33638?

CVE-2021-33638 has a severity rating of 8.4, which is considered high.

4

How can I fix CVE-2021-33638 in Openeuler Isula?

To fix CVE-2021-33638, update Openeuler Isula to a version that is not affected by the vulnerability.

5

Where can I find more information about CVE-2021-33638?

More information about CVE-2021-33638 can be found at the following references: [Link 1](https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2023-1686), [Link 2](https://gitee.com/src-openeuler/iSulad/pulls/627/files), [Link 3](https://gitee.com/src-openeuler/iSulad/pulls/600/files)

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