Cryptographic issues in PyCrypto - CVE-2013-1445

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The Crypto.Random.atfork function in PyCrypto before 2.6.1 does not properly reseed the pseudo-random number generator (PRNG) before allowing a child process to access it, which makes it easier for context-dependent attackers to obtain sensitive information by leveraging a race condition in which a child process is created and accesses the PRNG within the same rate-limit period as another process.

Affected software

How to mitigate CVE-2013-1445

External References

• http://www.debian.org/security/2013/dsa-2781
• http://www.openwall.com/lists/oss-security/2013/10/17/3
• https://github.com/dlitz/pycrypto/commit/19dcf7b15d61b7dc1a125a367151de40df6ef175

Related Security Bulletins

• Cryptographic issues in GNU PyCrypto
• Amazon Linux AMI update for python-crypto
• Multiple vulnerabilities in IBM Cloud Pak System
• Multiple vulnerabilities in IBM Watson Machine Learning Accelerator on Cloud Pak for Data