What’s Vulnerable › Vulnerabilities

CVE-2013-1445

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-10-26 · updated 2026-06-16
• Weakness: CWE-310

Description

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 products

• Dlitz Pycrypto: through 2.6; 1.0.0, 1.0.1, 1.0.2, 2.0, 2.0.1, 2.1.0 (+5)

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
• 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

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