CVE-2013-7459: Buffer Overflow in pycrypto
Summary
CVE-2013-7459: Buffer Overflow in pycrypto. Affects pycrypto versions < 2.6.1. No fix is published. How to fix ↓
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Background
Python Cryptography Toolkit (pycrypto) is an open-source library that provides cryptographic services such as encryption, decryption, and hashing. It is widely used in Python applications for secure data transmission and storage. However, pycrypto versions up to 2.6.1 are vulnerable to a heap-based buffer overflow in the ALGnew function in block_templace.c. This vulnerability allows remote attackers to execute arbitrary code by exploiting a crafted iv parameter in the cryptmsg.py module.
Vulnerability Detail
The vulnerability arises from a heap-based buffer overflow in the ALGnew function of pycrypto. By sending a specially crafted iv parameter to the cryptmsg.py module, an attacker can trigger the buffer overflow and execute arbitrary code on the target system. This can lead to a complete compromise of the system, allowing the attacker to gain unauthorized access, steal sensitive information, or perform other malicious activities. The severity of this vulnerability is rated as CRITICAL with a CVSS score of 9.8.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading to a patched version of pycrypto.
Conclusion
The buffer overflow vulnerability in pycrypto can lead to remote code execution and compromise of the target system. It is crucial to upgrade to a patched version of pycrypto (higher than 2.6.1) to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
PyCrypto is a Python library that provides cryptographic services such as encryption, decryption, and hashing.
This vulnerability allows remote attackers to execute arbitrary code on the target system, potentially leading to unauthorized access, data theft, or other malicious activities.
To fix this vulnerability, upgrade your pycrypto package to a version higher than 2.6.1 using the command 'pip install --upgrade pycrypto'.
No, there is no known workaround for this vulnerability. It is crucial to apply the recommended fix by upgrading to a patched version of pycrypto.
This vulnerability is rated as CRITICAL with a CVSS score of 9.8.
References
Related vulnerabilities
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