CVE-2022-30632: Uncontrolled Recursion in Glob in golang
Summary
CVE-2022-30632: Stack exhaustion on crafted paths in path/filepath. Affects golang across 2 version ranges.
< 1.17.12
>= 1.18.0, < 1.18.4
Fixed in 1.17.12 or 1.18.4, depending on the release line you run. How to fix ↓
Also tracked for
- golang-1.15 · Debian:11
- stdlib · Go
The same CVE-2022-30632 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
The golang package is a popular open-source programming language that provides a robust set of tools and libraries for building scalable and efficient applications. It is widely used for its simplicity, performance, and extensive standard library. However, a vulnerability has been discovered in the Glob function of the path/filepath package in versions before Go 1.17.12 and Go 1.18.4. This vulnerability allows an attacker to cause a panic due to stack exhaustion by providing a path containing a large number of path separators.
Vulnerability Detail
The vulnerability in the Glob function arises from uncontrolled recursion. When a path with a significant number of path separators is passed to the Glob function, it triggers an excessive number of recursive calls, leading to stack exhaustion. This can result in a panic, causing the application to crash. An attacker can exploit this vulnerability by crafting a malicious path and passing it to the Glob function, potentially leading to denial of service or other unexpected behavior.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
-
< 1.17.121.17.12 -
>= 1.18.0, < 1.18.41.18.4
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Workaround
There is no known workaround for this vulnerability. It is essential to update to the fixed versions of the golang package to address the issue.
Conclusion
The vulnerability in the Glob function of the golang package can be exploited by an attacker to cause a panic due to stack exhaustion. To mitigate this risk, it is recommended to update to the fixed versions (1.17.12 or 1.18.4) of the golang package. For further assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can lead to a denial of service (DoS) condition or unexpected application behavior due to a panic caused by stack exhaustion.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it for any open-source vulnerabilities, including this one.
No, only versions before Go 1.17.12 and Go 1.18.4 are vulnerable to this issue. It is crucial to update to the fixed versions to mitigate the risk.
While a specific exploit has not been disclosed, an attacker can craft a malicious path and pass it to the Glob function to trigger a panic and potentially disrupt the application's normal operation.
There is no evidence of active exploitation of this vulnerability at the time of this report. However, it is crucial to update to the fixed versions to prevent potential exploitation.
References
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