CVE-2023-45290: Memory Exhaustion in golang/stdlib
Summary
CVE-2023-45290: When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not app... Affects golang-1.15 versions 1.15.15-1 – 1.15.9-6. No fix is published. How to fix ↓
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Background
The golang/stdlib package is a standard library for the Go programming language. It provides essential functionalities for various tasks, including networking, file handling, and more. This vulnerability specifically affects the net/http module within the package.
Vulnerability Detail
The vulnerability (CVE-2023-45290) arises when parsing a multipart form using functions like Request.ParseMultipartForm or Request.FormValue. The issue lies in the lack of limits on the memory consumed while reading a single form line. This allows an attacker to craft malicious input with very long lines, leading to the allocation of excessive amounts of memory. As a result, the system may experience memory exhaustion. The fix for this vulnerability includes applying proper limits to the maximum size of form lines in the ParseMultipartForm function.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
In conclusion, the golang/stdlib package is vulnerable to a memory exhaustion issue when parsing multipart forms. This can be exploited by an attacker to exhaust system memory, potentially leading to denial of service. It is crucial to update the package to the fixed versions (1.21.8 or 1.22.1) to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to memory exhaustion, potentially causing system instability or denial of service.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and the tool will provide real-time alerts for open-source vulnerabilities.
No known exploits have been reported for this vulnerability at the time of this report.
Yes, the CVSS score for this vulnerability is 5.3.
You can find more information about this vulnerability on the NIST National Vulnerability Database (NVD) website: https://nvd.nist.gov/vuln/detail/CVE-2023-45290
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