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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pycrypto | Dlitz | * | 2.6 (including) |
| Pycrypto | Dlitz | 1.0.0 (including) | 1.0.0 (including) |
| Pycrypto | Dlitz | 1.0.1 (including) | 1.0.1 (including) |
| Pycrypto | Dlitz | 1.0.2 (including) | 1.0.2 (including) |
| Pycrypto | Dlitz | 2.0 (including) | 2.0 (including) |
| Pycrypto | Dlitz | 2.0.1 (including) | 2.0.1 (including) |
| Pycrypto | Dlitz | 2.1.0 (including) | 2.1.0 (including) |
| Pycrypto | Dlitz | 2.2 (including) | 2.2 (including) |
| Pycrypto | Dlitz | 2.3 (including) | 2.3 (including) |
| Pycrypto | Dlitz | 2.4 (including) | 2.4 (including) |
| Pycrypto | Dlitz | 2.4.1 (including) | 2.4.1 (including) |
| Pycrypto | Dlitz | 2.5 (including) | 2.5 (including) |