The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x before 4.0.6 does not properly handle SSL handshake errors when built with the --with-openssl option, which allows remote attackers to cause a denial of service (application crash) via a plaintext HTTP message.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "3.5.13"
},
{
"introduced": "0"
},
{
"last_affected": "4.0.4"
},
{
"introduced": "0"
},
{
"last_affected": "4.0.5"
}
]
}