Denial of Service Vulnerability in SQLite3 Package - CVE-2021-31239
Summary
UBUNTU-CVE-2021-31239: An issue found in SQLite SQLite3 v.3.35.4 that allows a remote attacker to cause a denial of service via the appendvfs.c function. Affects sqlite3 versions < 3.37.2-2ubuntu0.1. Fixed in 3.37.2-2ubuntu0.1. How to fix ↓
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Background
SQLite3 is a widely used database engine that provides a lightweight, serverless, self-contained SQL database. It is known for its simplicity and efficiency, making it a popular choice for applications ranging from mobile apps to web browsers. However, a vulnerability has been identified in version 3.35.4 of SQLite3, which could allow remote attackers to exploit the system.
Vulnerability Detail
An issue found in SQLite SQLite3 v.3.35.4 allows a remote attacker to cause a denial of service via the appendvfs.c function. This vulnerability can lead to service interruptions, potentially affecting applications that rely on SQLite3 for data management. The vulnerability has a CVSS score of 7.5, indicating a high severity level, and it could be exploited without authentication, making it particularly concerning for systems using this database engine.
How To Fix
Minimum fixed version
3.37.2-2ubuntu0.1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade sqlite3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, consider restricting access to the SQLite3 database or implementing network-level controls to prevent unauthorized access while you work on applying the patch.
Conclusion
The CVE-2021-31239 vulnerability in SQLite3 poses a significant risk due to its potential to cause denial of service. It is crucial for users of SQLite3 to update to the patched version to ensure the security and reliability of their applications.
See every vulnerability recorded for sqlite3 →
FAQ
CVE-2021-31239 is a vulnerability in SQLite3 that allows remote attackers to cause a denial of service.
The vulnerability can lead to service interruptions, affecting applications that depend on SQLite3 for data management.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The CVSS score of this vulnerability is 7.5, indicating a high severity level.
The best way to mitigate the risk is to update the SQLite3 package to the patched version as soon as possible.
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