Critical Vulnerability in Python Packages: USN-5519-1
Summary
USN-5519-1: python2.7, python3.10, python3.4, python3.5, python3.6, python3.8, python3.9 vulnerability. Affects python2.7 versions < 2.7.6-8ubuntu0.6+esm11. Fixed in 2.7.6-8ubuntu0.6+esm11. How to fix ↓
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Background
Python is a widely-used high-level programming language known for its readability and versatility. It supports multiple programming paradigms and is used in various applications, from web development to data analysis. The vulnerability identified in USN-5519-1 affects several versions of Python packages, including python2.7, python3.4, python3.5, python3.6, python3.8, python3.9, and python3.10, posing a significant risk to applications relying on these versions.
Vulnerability Detail
The vulnerability, identified as CVE-2015-20107, arises from Python's improper handling of certain inputs. This flaw can potentially allow an attacker to execute arbitrary code, leading to unauthorized access or control over the affected systems. The issue is rooted in the way Python processes specific data types, which can be exploited if not properly sanitized.
How To Fix
Minimum fixed version
2.7.6-8ubuntu0.6+esm11
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python2.7Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, you can restrict the execution of untrusted code by implementing strict input validation and sanitization in your applications. This can help mitigate the risk of exploitation until the packages are updated.
Conclusion
The vulnerability identified in USN-5519-1 poses a serious risk to applications using affected versions of Python packages. It is crucial to update to the patched versions to mitigate the risk of exploitation. For those unable to update immediately, implementing input validation can serve as a temporary measure.
See every vulnerability recorded for python2.7 →
FAQ
CVE-2015-20107 is a vulnerability in Python that allows for arbitrary code execution due to improper input handling.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Exploitation of this vulnerability can lead to unauthorized access, data breaches, or complete control over the affected systems.
Yes, patched versions of the affected Python packages are available. Updating to these versions will resolve the vulnerability.
If immediate updates are not possible, implement strict input validation and sanitization as a temporary workaround to reduce the risk of exploitation.
References
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