Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first argument (aka the "command" argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An attacker can exploit this to call an arbitrary Ruby method.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "19.3.0.2"
}
]
}{
"versions": [
{
"introduced": "2.4.0"
},
{
"last_affected": "2.4.7"
},
{
"introduced": "2.5.0"
},
{
"last_affected": "2.5.6"
},
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.4"
}
]
}[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.1"
}
]
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-16255.json"