The web console login form in ovirt-engine before version 4.2.3 returned different errors for non-existent users and invalid passwords, allowing an attacker to discover the names of valid user accounts.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "4.2.3"
},
{
"introduced": "0"
},
{
"last_affected": "4.0"
},
{
"introduced": "0"
},
{
"last_affected": "4.0"
}
]
}