MEDIUM
CVE-2014-0016
CWE-332Published: March 24, 2014· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official 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.
Technical Analysis
CVE-2014-0016 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityNone
AvailabilityNone
AV:N/AC:M/Au:N/C:P/I:N/A:N
Affected Vendors & Products
stunnel1 product(s)
stunnel
Source: NVD CPE · 102 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://www.openwall.com/lists/oss-security/2014/03/05/1Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/65964Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1072180Issue Tracking · Third Party Advisory · VDB Entry
→
https://www.stunnel.org/sdf_ChangeLog.htmlRelease Notes · Vendor Advisory
→
http://www.openwall.com/lists/oss-security/2014/03/05/1Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/65964Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1072180Issue Tracking · Third Party Advisory · VDB Entry
→
https://www.stunnel.org/sdf_ChangeLog.htmlRelease Notes · Vendor Advisory
Quick Facts
CVE IDCVE-2014-0016
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-332
CISA KEVNo
Affected1 vendor(s)
PublishedMar 24, 2014
Related CVEs (CWE-332)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2014-0016 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.