Moderate: python-lxml security update
Summary
ALSA-2022:8226: Moderate: python-lxml security update. Affects python3-lxml versions < 4.6.5-3.el9. Fixed in 4.6.5-3.el9. How to fix ↓
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Background
lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API. It is widely used for parsing and manipulating XML and HTML documents. The python3-lxml package in AlmaLinux 9 is affected by a moderate security vulnerability.
Vulnerability Detail
The vulnerability, identified as CVE-2022-2309, is a NULL Pointer Dereference in lxml. This vulnerability could be exploited by an attacker to cause a denial of service (DoS) condition by sending a specially crafted XML document. By exploiting this vulnerability, an attacker may be able to crash the application using lxml library, leading to a disruption of service. The impact of this vulnerability is considered moderate.
How To Fix
Minimum fixed version
4.6.5-3.el9
This is the first release that contains the fix.
sudo dnf update python3-lxmlTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
In conclusion, the python3-lxml package in AlmaLinux 9 is affected by a moderate security vulnerability (CVE-2022-2309) that could lead to a denial of service condition. It is crucial to update the package to version 4.6.5-3.el9 or later to mitigate the risk. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
lxml is an XML processing library for Python that provides access to libxml2 and libxslt libraries. It allows developers to parse and manipulate XML and HTML documents.
The vulnerability can be exploited to cause a denial of service (DoS) condition by crashing the application using lxml library. This can lead to a disruption of service.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it for open-source vulnerabilities in real-time.
No specific workaround has been provided for this vulnerability. It is recommended to update the python3-lxml package to the latest version to mitigate the risk.
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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