CVE-2014-0016
stunnel: Improper initialization of PRNG after fork()
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · March 5, 2014
Updated · November 21, 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.
Statement
Not vulnerable. This issue does not affect the version of stunnel package as shipped with Red Hat Enterprise Linux 5 and 6.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:P/I:N/A:N
CWE not specified