In Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the LTP dissector and other dissectors could consume excessive memory. This was addressed in epan/tvbuff.c by rejecting negative lengths.
{
"versions": [
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.14"
},
{
"introduced": "2.4.0"
},
{
"last_affected": "2.4.6"
},
{
"introduced": "0"
},
{
"last_affected": "2.6.0"
}
]
}