ext/imap/phpimap.c in PHP 5.x and 7.x before 7.3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty string in the message argument to the imapmail function.
{
"versions": [
{
"introduced": "5.6.0"
},
{
"fixed": "5.6.39"
},
{
"introduced": "7.0.0"
},
{
"fixed": "7.0.33"
},
{
"introduced": "7.1.0"
},
{
"fixed": "7.1.26"
},
{
"introduced": "7.2.0"
},
{
"fixed": "7.2.14"
},
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
}