Arbitrary Heap Data Extraction in Ruby
Summary
CVE-2024-27282: An issue was discovered in Ruby 3.x through 3.3.0. Affects ruby versions < 3.1.5-r0. Fixed in 3.1.5-r0. How to fix ↓
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Background
Ruby is a dynamic, object-oriented programming language known for its simplicity and productivity. It is widely used for web development, scripting, and system administration tasks. The vulnerability CVE-2024-27282 affects Ruby versions 3.x through 3.3.0. It allows an attacker to extract arbitrary heap data relative to the start of the text, including pointers and sensitive strings.
Vulnerability Detail
The vulnerability arises when attacker-supplied data is provided to the Ruby regex compiler. By exploiting this issue, an attacker can access sensitive information stored in the heap memory, such as pointers and strings. This can lead to potential security breaches and unauthorized access to sensitive data. The fixed versions of Ruby that address this vulnerability are 3.0.7, 3.1.5, 3.2.4, and 3.3.1.
How To Fix
Minimum fixed version
3.1.5-r0
This is the first release that contains the fix.
sudo apk add --upgrade rubyTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround available for this vulnerability. It is crucial to update Ruby to the fixed versions as soon as possible to mitigate the risk of exploitation.
Conclusion
The vulnerability CVE-2024-27282 in Ruby allows an attacker to extract arbitrary heap data, including sensitive information. To mitigate this risk, it is crucial to update Ruby to one of the fixed versions (3.0.7, 3.1.5, 3.2.4, or 3.3.1). For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability allows an attacker to extract arbitrary heap data, including sensitive information, from the Ruby regex compiler. It can potentially lead to unauthorized access to sensitive data and security breaches.
Ruby versions 3.x through 3.3.0 are affected by this vulnerability.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your Ruby installation is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will provide real-time alerts for open-source vulnerabilities.
At the time of this report, there are no known public exploits for this vulnerability. However, it is essential to update Ruby to the fixed versions to prevent potential exploitation.
Yes, the Ruby development team has released fixed versions (3.0.7, 3.1.5, 3.2.4, and 3.3.1) that address this vulnerability. It is recommended to update Ruby to one of these versions.
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