Denial of Service Vulnerability in sqlparse Package
Summary
USN-6771-1: sqlparse vulnerability. Affects sqlparse versions < 0.4.2-1ubuntu0.22.04.2. Fixed in 0.4.2-1ubuntu0.22.04.2. How to fix ↓
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Background
The sqlparse package is a non-validating SQL parser for Python, designed to provide a simple interface for parsing SQL statements. It is commonly used in applications that require SQL query manipulation or analysis. The package is integral to various database-related tasks, making its security critical. This vulnerability affects specific versions of sqlparse in Ubuntu 22.04 LTS and 24.04 LTS, potentially allowing attackers to exploit the package's handling of nested lists.
Vulnerability Detail
A vulnerability was discovered in the sqlparse package, where it incorrectly handled certain nested lists. This flaw could allow an attacker to craft specific inputs that lead to a denial of service (DoS) condition, effectively disrupting the normal operation of applications that rely on sqlparse for SQL parsing. The vulnerability is identified as CVE-2024-4340, and it poses a significant risk to systems using affected versions of the package.
How To Fix
Minimum fixed version
0.4.2-1ubuntu0.22.04.2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade sqlparseTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid processing untrusted SQL input until the package is updated. This may involve implementing input validation or sanitization measures in the application code to mitigate the risk of exploitation.
Conclusion
The sqlparse vulnerability poses a significant risk of denial of service attacks due to improper handling of nested lists. Users are strongly advised to update to the latest patched versions of the package to ensure the security of their applications. Additionally, utilizing tools like Vulert can help monitor and alert for open-source vulnerabilities in real-time.
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FAQ
sqlparse is a non-validating SQL parser for Python that provides a simple interface for parsing SQL statements.
The vulnerability allows for denial of service attacks due to improper handling of nested lists in the sqlparse package.
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 affected versions include sqlparse 0.4.2-1ubuntu0.22.04.2 for Ubuntu 22.04 LTS and 0.4.4-1ubuntu0.1 for Ubuntu 24.04 LTS.
Update the sqlparse package to the latest patched version as soon as possible and consider implementing input validation to mitigate risks.
References
Related vulnerabilities
Recent vulnerabilities recorded for sqlparse.
