Vulnerability in Rust Package (Alpine:v3.19) - CVE-2021-42574
Summary
CVE-2021-42574: An issue was discovered in the Bidirectional Algorithm in the Unicode Specification through 14.0. Affects rust versions < 1.56.1-r0. Fixed in 1.56.1-r0. How to fix ↓
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Background
The Rust package is a programming language that focuses on performance, reliability, and productivity. It is widely used for developing system software, web applications, and more. The Alpine:v3.19 ecosystem is affected by a vulnerability known as CVE-2021-42574.
Vulnerability Detail
CVE-2021-42574 is a vulnerability in the Bidirectional Algorithm in the Unicode Specification. It allows for the visual reordering of characters through control sequences, which can be exploited to create source code that appears differently to human reviewers compared to how it is processed by compilers and interpreters. This can lead to the introduction of hidden vulnerabilities in code. Adversaries can leverage this vulnerability to encode source code in a way that introduces targeted vulnerabilities without being detected by human reviewers. The Unicode Consortium has provided guidance on mitigating this vulnerability in Unicode Technical Standard #39 and Unicode Standard Annex #31.
How To Fix
Minimum fixed version
1.56.1-r0
This is the first release that contains the fix.
sudo apk add --upgrade rustTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the Rust package in the Alpine:v3.19 ecosystem is affected by a vulnerability (CVE-2021-42574) that allows for the visual reordering of characters in source code. This can lead to the introduction of hidden vulnerabilities. It is recommended to update the Rust package to version 1.56.1-r0 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability allows adversaries to introduce hidden vulnerabilities in source code, which can be exploited to compromise the security and integrity of the affected software.
Yes, this vulnerability can be exploited remotely if the affected software is exposed to the internet.
There are no known instances of this vulnerability being exploited at the moment.
Yes, the CVSS score for this vulnerability is 8.3.
You can find more information about this vulnerability in the CVE-2021-42574 entry on the Vulert website.
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