Arithmetic Overflow in sysstat's allocate_structures() on 32-bit systems
Summary
ALSA-2023:2800: Moderate: sysstat security and bug fix update. Affects sysstat versions < 11.7.3-9.el8. Fixed in 11.7.3-9.el8. How to fix ↓
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Background
The sysstat package provides the sar and iostat commands, which are used for system monitoring of disk, network, and other I/O activity. These commands are essential for administrators to gather performance data and analyze system behavior.
Vulnerability Detail
The vulnerability (CVE-2022-39377) in sysstat is an arithmetic overflow in the allocate_structures() function on 32-bit systems. This vulnerability can be exploited by an attacker to cause a denial-of-service (DoS) condition or potentially execute arbitrary code. By sending specially crafted input, an attacker can trigger the overflow, leading to unexpected behavior or crashes in the sysstat package.
How To Fix
Minimum fixed version
11.7.3-9.el8
This is the first release that contains the fix.
sudo dnf update sysstatTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is crucial to apply the security update to mitigate the risk of exploitation.
Conclusion
The arithmetic overflow vulnerability in sysstat's allocate_structures() function on 32-bit systems can lead to a denial-of-service condition or potential code execution. It is crucial to update the sysstat package to version 11.7.3-9.el8 or later to mitigate the risk. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for sysstat →
FAQ
Sysstat is a package that provides system monitoring tools like sar and iostat. These tools help administrators analyze system performance and identify bottlenecks.
The vulnerability can lead to a denial-of-service condition or potential execution of arbitrary code. It is important to patch the sysstat package to prevent exploitation.
You can update the sysstat package using your package manager or by downloading the updated package from the official AlmaLinux repositories. Make sure to install version 11.7.3-9.el8 or later.
No, there is no known workaround for this vulnerability. Applying the security update is the recommended solution.
You can find more information about this vulnerability, including the CVE page, in the AlmaLinux Release Notes linked in the References section of the advisory.
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