By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a consequence of type confusion error, with a low chance of RCE. This issue affects Hermes versions prior to v0.10.0.
{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "0.10.0"
}
],
"cpe": "cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}