Integer Overflow Vulnerability in sysstat Package: CVE-2023-33204
Summary
DEBIAN-CVE-2023-33204: sysstat through 12.7.2 allows a multiplication integer overflow in check_overflow in common.c. Affects sysstat versions < 12.6.1-2. Fixed in 12.6.1-2. How to fix ↓
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Background
The sysstat package is a collection of performance monitoring tools for Linux. It provides utilities to collect and report system performance metrics, including CPU usage, memory usage, and I/O statistics. This package is widely used in server environments to help administrators monitor system health and performance. However, a vulnerability has been identified in versions up to 12.7.2, which could potentially lead to serious security issues if not addressed.
Vulnerability Detail
The vulnerability identified as CVE-2023-33204 is an integer overflow in the check_overflow function located in common.c of the sysstat package. This issue arises from an incomplete fix for a previous vulnerability (CVE-2022-39377). If exploited, this integer overflow could lead to unexpected behavior in the application, potentially allowing an attacker to execute arbitrary code or cause a denial of service. The vulnerability affects both Debian 13 and 14 versions of the sysstat package.
How To Fix
Minimum fixed version
12.6.1-2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade sysstat
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Workaround
As a temporary workaround, you can limit the execution of the sysstat utilities or monitor the system performance using alternative tools until the package is updated. However, this is not a permanent solution and updating the package is strongly advised.
Conclusion
The CVE-2023-33204 vulnerability in the sysstat package poses a significant risk due to an integer overflow issue. It is crucial for users of the affected versions to update their packages promptly to mitigate potential security threats. Utilizing tools like Vulert can help in monitoring vulnerabilities effectively.
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FAQ
CVE-2023-33204 is a vulnerability in the sysstat package that allows for an integer overflow, potentially leading to security issues.
The vulnerability affects sysstat versions up to 12.7.2 in both Debian 13 and 14.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected.
If an immediate update is not possible, consider limiting the use of sysstat utilities or using alternative monitoring tools as a temporary measure.
Yes, the permanent fix is to update the sysstat package to version 12.6.1-2 or later, which addresses the integer overflow issue.
References
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