Use-of-uninitialized-value in udiv - mruby
Summary
OSV-2022-665: Use-of-uninitialized-value in udiv. Affects mruby versions >= de2ea3c389e4f5a4b0910fbf203b93d8cf409957, < 441c6ea30d52e25af56b79340b80b76763b4e453. Fixed in 441c6ea30d52e25af56b79340b80b76763b4e453. How to fix ↓
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Background
mruby is an open-source lightweight implementation of the Ruby programming language. It is designed to be embedded in other applications and provides a minimalistic and efficient runtime environment. The vulnerability in question affects mruby's udiv function, which is responsible for performing unsigned integer division. This vulnerability arises from the use of uninitialized values, leading to potential crashes or incorrect computation results.
Vulnerability Detail
The use-of-uninitialized-value vulnerability in mruby's udiv function can result in crashes or incorrect computation results. This vulnerability occurs when the function attempts to divide unsigned integers using uninitialized values. An attacker could potentially exploit this vulnerability to cause a denial-of-service condition or manipulate computation results, leading to unexpected behavior in applications utilizing mruby. The vulnerability has a medium severity rating.
How To Fix
Minimum fixed version
441c6ea30d52e25af56b79340b80b76763b4e453
This is the first release that contains the fix.
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Workaround
There is no specific workaround provided for this vulnerability. It is recommended to apply the fix mentioned in the 'how_to_fix' section to ensure the vulnerability is addressed.
Conclusion
The use-of-uninitialized-value vulnerability in mruby's udiv function can lead to crashes or incorrect computation results. It is crucial for developers to update their mruby installations to a version that includes the fix to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
mruby is a lightweight implementation of the Ruby programming language designed for embedding in other applications.
This vulnerability can result in crashes or incorrect computation results, potentially leading to denial-of-service conditions or unexpected behavior in applications utilizing mruby.
To fix this vulnerability, update your mruby installation to a version that includes the fix. Refer to the 'how_to_fix' section for more details.
No specific workaround is provided for this vulnerability. It is recommended to apply the fix mentioned in the 'how_to_fix' section.
This vulnerability has a medium severity rating.
References
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