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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2021-20230 |
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 stunnel server, to access the tunneled service instead of being redirected to the address specified in the redirect option. The highest threat from this vulnerability is to confidentiality. Published: February 23, 2021; 12:15:13 PM -0500 |
V4.0:(not available) V3.1: 7.5 HIGH V2.0: 5.0 MEDIUM |
CVE-2014-0016 |
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. Published: March 24, 2014; 12:31:08 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.3 MEDIUM |
CVE-2013-1762 |
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. Published: March 08, 2013; 1:55:01 PM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 6.6 MEDIUM |
CVE-2008-2400 |
Unspecified vulnerability in stunnel before 4.23, when running as a service on Windows, allows local users to gain privileges via unknown attack vectors. Published: May 22, 2008; 9:09:00 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 7.2 HIGH |