Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2014-0016

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
24/03/2014
Last modified:
12/04/2025

Description

stunnel before 5.00, when using fork threading, does not properly update the state of the OpenSSL pseudo-random number generator (PRNG), which causes subsequent children with the same process ID to use the same entropy pool and allows remote attackers to obtain private keys for EC (ECDSA) or DSA certificates.

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:stunnel:stunnel:*:*:*:*:*:*:*:* 4.56 (including)
cpe:2.3:a:stunnel:stunnel:0.1:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.0:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.1:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.2:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.3:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.4:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.5:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:1.6:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:2.0:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:2.1:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:3.0:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:3.0:b1:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:3.0:b2:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:3.0:b3:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools