Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2013-1445

Severity CVSS v4.0:
Pending analysis
Type:
CWE-310 Cryptographic Issues
Publication date:
26/10/2013
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:dlitz:pycrypto:*:*:*:*:*:*:*:* 2.6 (including)
cpe:2.3:a:dlitz:pycrypto:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.0:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.2:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.3:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.4:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:dlitz:pycrypto:2.5:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools