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CVE-2021-32773

6.1 · MEDIUM

Racket is a general-purpose programming language and an ecosystem for language-oriented programming.

Published Jul 20, 2021CWE-441EPSS 0.87%

Overview

CVE-2021-32773 is a medium-severity vulnerability. It was published on July 20, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Racket is a general-purpose programming language and an ecosystem for language-oriented programming. In versions prior to 8.2, code evaluated using the Racket sandbox could cause system modules to incorrectly use attacker-created modules instead of their intended dependencies. This could allow system functions to be controlled by the attacker, giving access to facilities intended to be restricted. This problem is fixed in Racket version 8.2. A workaround is available, depending on system settings. For systems that provide arbitrary Racket evaluation, external sandboxing such as containers limit the impact of the problem. For multi-user evaluation systems, such as the `handin-server` system, it is not possible to work around this problem and upgrading is required.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/racket/racket/commit/6ca4ffeca1e5877d44f835760ad89f18488d97e1GitHubgithub.com/racket/racket/security/advisories/GHSA-cgrw-p7p7-937cGitHubgithub.com/racket/racket/commit/6ca4ffeca1e5877d44f835760ad89f18488d97e1GitHubgithub.com/racket/racket/security/advisories/GHSA-cgrw-p7p7-937c

How CyberStrike helps

Frequently asked questions

What is CVE-2021-32773?

CVE-2021-32773 is a medium-severity vulnerability. It was published on July 20, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2021-32773?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-32773?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-32773?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-32773 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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