Heap-buffer-overflow in libucl: ucl_hash_destroy
Summary
OSV-2023-1025: Heap-buffer-overflow in ucl_hash_destroy. Affected versions are not published. No fix is published. How to fix ↓
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Background
libucl is an open-source library that provides a parser and an object model for handling Universal Configuration Language (UCL) data. It is commonly used for parsing and manipulating configuration files in various applications. However, a vulnerability has been discovered in the library that can lead to a heap-buffer-overflow.
Vulnerability Detail
The vulnerability in libucl, specifically in the function ucl_hash_destroy, allows for a heap-buffer-overflow read of 8 bytes. This can result in a crash and potentially be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. The vulnerability has been reported through the OSS-Fuzz project and further details can be found in the provided link.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, developers can implement bounds checking and input validation in their applications to mitigate the risk of exploitation. By ensuring that input data is properly validated and not exceeding the expected bounds, the impact of the vulnerability can be reduced.
Conclusion
In conclusion, libucl is vulnerable to a heap-buffer-overflow in the ucl_hash_destroy function. This vulnerability can have serious security implications, including potential code execution or denial-of-service. It is crucial for developers to update their applications to the latest version of libucl that includes the fix for this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libucl →
FAQ
libucl is an open-source library for parsing and manipulating Universal Configuration Language (UCL) data. It is commonly used in applications that require configuration file handling.
A heap-buffer-overflow is a type of vulnerability where a program attempts to read or write data outside the bounds of a heap-allocated buffer. This can lead to crashes, memory corruption, and potential code execution.
An attacker can exploit this vulnerability by providing specially crafted input that triggers the heap-buffer-overflow. This can potentially allow the attacker to execute arbitrary code or cause a denial-of-service condition.
Yes, the maintainers of libucl have addressed this vulnerability and released a fixed version. It is recommended to update to the latest version of libucl to mitigate the risk.
There are no known instances of this vulnerability being actively exploited in the wild. However, it is important to apply the necessary updates and security measures to protect against potential exploitation.
References
Related vulnerabilities
Recent vulnerabilities recorded for libucl.
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