Vulnerability in python-crypto: Calling AES.new with an invalid parameter can crash the Python interpreter
Summary
DLA-773-4: python-crypto - update. Affects python-crypto versions < 2.6-4+deb7u7. Fixed in 2.6-4+deb7u7. How to fix ↓
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Background
python-crypto is a library of cryptographic algorithms and protocols for Python. It provides functionality for encryption, decryption, and other cryptographic operations. The library is widely used in various applications that require secure communication and data protection. However, a vulnerability has been discovered in python-crypto that can lead to a crash in the Python interpreter when AES.new is called with an invalid parameter.
Vulnerability Detail
The vulnerability in python-crypto arises when AES.new is invoked with an invalid parameter. This can cause the Python interpreter to crash, resulting in a denial of service (DoS) condition. An attacker can potentially exploit this vulnerability by providing malicious input to trigger the crash. The impact of this vulnerability is limited to the availability of the affected Python interpreter. It does not directly lead to unauthorized access or data compromise.
How To Fix
Minimum fixed version
2.6-4+deb7u7
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-cryptoTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround provided for this vulnerability. However, users can mitigate the risk by ensuring that only trusted input is passed to the AES.new function in python-crypto. Input validation and sanitization can help prevent the use of invalid parameters that trigger the crash.
Conclusion
In conclusion, the python-crypto library is vulnerable to a crash in the Python interpreter when an invalid parameter is passed to AES.new. This vulnerability can be mitigated by upgrading to the latest version of the python-crypto package. Input validation and sanitization can also help reduce the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
python-crypto is a library for Python that provides cryptographic algorithms and protocols for various security operations.
The vulnerability can cause a crash in the Python interpreter, resulting in a denial of service (DoS) condition. It does not directly lead to unauthorized access or data compromise.
To fix this vulnerability, upgrade the python-crypto package to version 2.6-4+deb7u4 or later.
There is no specific workaround provided, but input validation and sanitization can help mitigate the risk.
The updated python-crypto package can be obtained from the official Debian repository or through package management tools.
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