This script is Copyright (C) 2014-2016 Tenable Network Security, Inc.
The remote Windows host contains a program that is affected by
The version of stunnel installed on the remote host is prior to
version 5.02. It is, therefore, affected by the following
- An error exists in the ssl3_read_bytes() function that
allows data to be injected into other sessions or allows
denial of service attacks. Note this issue is only
exploitable if 'SSL_MODE_RELEASE_BUFFERS' is enabled.
- A buffer overflow error exists related to invalid DTLS
fragment handling that allows an attacker to execute
arbitrary code. Note this issue only affects OpenSSL
when used as a DTLS client or server. (CVE-2014-0195)
- An error exists in the do_ssl3_write() function that
allows a NULL pointer to be dereferenced, resulting in a
denial of service condition. Note this issue is
exploitable only if 'SSL_MODE_RELEASE_BUFFERS' is
- An error exists related to DTLS handshake handling that
could lead to denial of service attacks. Note this
issue only affects OpenSSL when used as a DTLS client.
- An unspecified error exists that allows an attacker to
cause usage of weak keying material, resulting in
simplified man-in-the-middle attacks. (CVE-2014-0224)
- An unspecified error exists related to anonymous ECDH
ciphersuites that allows an attacker to cause a denial
of service condition. Note this issue only affects
OpenSSL TLS clients. (CVE-2014-3470)
Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.
See also :
Upgrade to stunnel version 5.02 or later.
Risk factor :
High / CVSS Base Score : 9.3
CVSS Temporal Score : 7.3
Public Exploit Available : true
Nessus Plugin ID: 74421 ()
Get Nessus Professional to scan unlimited IPs, run compliance checks & moreBuy Nessus Professional Now