CVEvulnerability

CVE-2014-0016

4.3 MEDIUM Published 2014-03-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2014-03-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-332

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.

Affected configurations

• stunnel stunnel (<= 4.56) • stunnel stunnel 0.1 • stunnel stunnel 1.0 • stunnel stunnel 1.1 • stunnel stunnel 1.2 • stunnel stunnel 1.3 • stunnel stunnel 1.4 • stunnel stunnel 1.5 • stunnel stunnel 1.6 • stunnel stunnel 2.0 • stunnel stunnel 2.1 • stunnel stunnel 3.0 • stunnel stunnel 3.1 • stunnel stunnel 3.2 • stunnel stunnel 3.3 • stunnel stunnel 3.4a • stunnel stunnel 3.5 • stunnel stunnel 3.6 • stunnel stunnel 3.7 • stunnel stunnel 3.8 • stunnel stunnel 3.8p1 • stunnel stunnel 3.8p2 • stunnel stunnel 3.8p3 • stunnel stunnel 3.8p4 • stunnel stunnel 3.9 • stunnel stunnel 3.10 • stunnel stunnel 3.11 • stunnel stunnel 3.12 • stunnel stunnel 3.13 • stunnel stunnel 3.14 • stunnel stunnel 3.15 • stunnel stunnel 3.16 • stunnel stunnel 3.17 • stunnel stunnel 3.18 • stunnel stunnel 3.19 • stunnel stunnel 3.20 • stunnel stunnel 3.21 • stunnel stunnel 3.21a • stunnel stunnel 3.21b • stunnel stunnel 3.21c • stunnel stunnel 3.22 • stunnel stunnel 3.23 • stunnel stunnel 3.24 • stunnel stunnel 3.25 • stunnel stunnel 3.26 • stunnel stunnel 4.00 • stunnel stunnel 4.0 • stunnel stunnel 4.01 • stunnel stunnel 4.02 • stunnel stunnel 4.03 • stunnel stunnel 4.04 • stunnel stunnel 4.05 • stunnel stunnel 4.06 • stunnel stunnel 4.07 • stunnel stunnel 4.08 • stunnel stunnel 4.09 • stunnel stunnel 4.10 • stunnel stunnel 4.11 • stunnel stunnel 4.12 • stunnel stunnel 4.13 … and 42 more

Related

Weakness · CWE (1)

  • CWE-332 Insufficient Entropy in PRNG weakness

References