Stunnel
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1- 12 CVEs
Recent CVEs
12| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2003-0740 | 0.03 | — | 0.01 | Oct 20, 2003 | Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server. | |||
| CVE-2002-0002 | 0.03 | — | 0.05 | Jan 31, 2002 | Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp, (2) pop, or (3) nntp allows remote malicious servers to execute arbitrary code. | |||
| CVE-2003-0147 | 0.01 | — | 0.06 | Mar 31, 2003 | OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer… | |||
| CVE-2021-20230 | 0.00 | — | 0.01 | Feb 23, 2021 | A flaw was found in stunnel before 5.57, where it improperly validates client certificates when it is configured to use both redirect and verifyChain options. This flaw allows an attacker with a certificate signed by a Certificate Authority, which is not the one accepted by the… | |||
| CVE-2015-3644 | 0.00 | — | 0.02 | May 14, 2015 | Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication. | |||
| CVE-2014-0016 | 0.00 | — | 0.02 | Mar 24, 2014 | 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… | |||
| CVE-2013-1762 | 0.00 | — | 0.03 | Mar 8, 2013 | stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow. | |||
| CVE-2011-2940 | 0.00 | — | 0.06 | Aug 25, 2011 | stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors. | |||
| CVE-2008-2420 | 0.00 | — | 0.01 | May 23, 2008 | The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates. | |||
| CVE-2008-2400 | 0.00 | — | 0.00 | May 22, 2008 | Unspecified vulnerability in stunnel before 4.23, when running as a service on Windows, allows local users to gain privileges via unknown attack vectors. | |||
| CVE-2002-1563 | 0.00 | — | 0.00 | May 12, 2003 | stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter. | |||
| CVE-2001-0060 | 0.00 | — | 0.03 | Feb 12, 2001 | Format string vulnerability in stunnel 3.8 and earlier allows attackers to execute arbitrary commands via a malformed ident username. |
- CVE-2003-0740Oct 20, 2003risk 0.03cvss —epss 0.01
Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.
- CVE-2002-0002Jan 31, 2002risk 0.03cvss —epss 0.05
Format string vulnerability in stunnel before 3.22 when used in client mode for (1) smtp, (2) pop, or (3) nntp allows remote malicious servers to execute arbitrary code.
- CVE-2003-0147Mar 31, 2003risk 0.01cvss —epss 0.06
OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer…
- CVE-2021-20230Feb 23, 2021risk 0.00cvss —epss 0.01
A flaw was found in stunnel before 5.57, where it improperly validates client certificates when it is configured to use both redirect and verifyChain options. This flaw allows an attacker with a certificate signed by a Certificate Authority, which is not the one accepted by the…
- CVE-2015-3644May 14, 2015risk 0.00cvss —epss 0.02
Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication.
- CVE-2014-0016Mar 24, 2014risk 0.00cvss —epss 0.02
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…
- CVE-2013-1762Mar 8, 2013risk 0.00cvss —epss 0.03
stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow.
- CVE-2011-2940Aug 25, 2011risk 0.00cvss —epss 0.06
stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
- CVE-2008-2420May 23, 2008risk 0.00cvss —epss 0.01
The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.
- CVE-2008-2400May 22, 2008risk 0.00cvss —epss 0.00
Unspecified vulnerability in stunnel before 4.23, when running as a service on Windows, allows local users to gain privileges via unknown attack vectors.
- CVE-2002-1563May 12, 2003risk 0.00cvss —epss 0.00
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
- CVE-2001-0060Feb 12, 2001risk 0.00cvss —epss 0.03
Format string vulnerability in stunnel 3.8 and earlier allows attackers to execute arbitrary commands via a malformed ident username.