Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a crash outcome might be achieved by an attacker who is able to trigger a debug.upvaluejoin call in which the arguments have certain relationships.
{
"unresolved_ranges": [
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"extracted_events": [
{
"last_affected": "16.04"
}
]
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "18.04"
}
],
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "18.10"
}
]
}
]
}{
"source": "CPE_FIELD",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "5.3.5"
}
],
"cpe": "cpe:2.3:a:lua:lua:5.3.5:*:*:*:*:*:*:*"
}