Denial of Service Vulnerability in Virtuoso OpenSource Package
Summary
DEBIAN-CVE-2023-31615: An issue in the chash_array component of openlink virtuoso-opensource v7.2.9 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements. Affects virtuoso-opensource versions < 7.2.12+dfsg-0.2. Fixed in 7.2.12+dfsg-0.2. How to fix ↓
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Background
Virtuoso OpenSource is a versatile open-source database engine that supports RDF, SQL, and SPARQL. It is widely used for data integration, linked data, and semantic web applications. The package is known for its high performance and scalability, making it a popular choice among developers. However, it has been found vulnerable to a Denial of Service (DoS) attack due to a flaw in the chash_array component, which can be exploited through crafted SQL statements.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2023-31615 affects the chash_array component of Virtuoso OpenSource version 7.2.9. Attackers can exploit this vulnerability by sending specially crafted SQL statements, leading to a Denial of Service (DoS). This can cause the application to become unresponsive, impacting availability and potentially leading to service interruptions for users. The issue arises from improper handling of certain SQL inputs, which can overwhelm the system's resources.
How To Fix
Minimum fixed version
7.2.12+dfsg-0.2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade virtuoso-opensourceTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can limit the SQL statements processed by the application or implement input validation to filter out potentially harmful SQL commands. However, this is not a permanent solution and updating the package is strongly advised.
Conclusion
The vulnerability in Virtuoso OpenSource poses a significant risk of Denial of Service attacks through crafted SQL statements. It is crucial for users to update to the patched version to mitigate this risk. Additionally, utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
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FAQ
The vulnerability allows attackers to execute crafted SQL statements that can lead to a Denial of Service (DoS) condition.
Versions prior to 7.2.12+dfsg-0.2 are affected by this vulnerability.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The primary impact is a Denial of Service, which can render the application unresponsive and disrupt services for users.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities using just a manifest file like package-lock.json.
References
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