Critical Vulnerability in python-pip: Denial of Service Risk Due to Improper Filename Validation
Summary
USN-5821-3: python-pip regression. Affects python-pip versions < 1.5.4-1ubuntu4+esm3. Fixed in 1.5.4-1ubuntu4+esm3. How to fix ↓
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Background
python-pip is a package management system for Python that allows users to install and manage software packages written in Python. It is widely used in various applications and environments. The vulnerability in question affects multiple versions of python-pip across different Ubuntu LTS releases, making it crucial for users to be aware of its implications and to take necessary actions to mitigate risks.
Vulnerability Detail
USN-5821-1 revealed a vulnerability in the python-pip package, specifically related to how it handles certain file names against a regex expression. This flaw could allow an attacker to exploit the system, potentially leading to a denial of service. The vulnerability is tied to CVE-2022-40898, which emphasizes the need for immediate attention to the affected versions of python-pip.
How To Fix
Minimum fixed version
1.5.4-1ubuntu4+esm3
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-pipTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate updating is not possible, consider restricting access to the affected systems and monitoring for unusual activity until the patch can be applied.
Conclusion
The python-pip vulnerability outlined in USN-5821-3 poses a significant risk of denial of service due to improper filename validation. It is crucial for users to update their packages to the patched versions to mitigate this risk. Regular monitoring and prompt action are essential to maintain the security of your applications.
See every vulnerability recorded for python-pip →
FAQ
The vulnerability allows for improper handling of file names, which could lead to a denial of service.
Versions across Ubuntu 14.04, 16.04, 18.04, 20.04, and 22.04 LTS are affected.
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Failure to address this vulnerability could lead to denial of service attacks, impacting the availability of your applications.
No subscription is required for the patches available for Ubuntu 18.04, 20.04, and 22.04 LTS.
References
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