A possible use-after-free and double-free in c-ares lib version 1.16.0 if ares_destroy() is called prior to ares_getaddrinfo() completing. This flaw possibly allows an attacker to crash the service that uses c-ares lib. The highest threat from this vulnerability is to this service availability.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "33"
}
],
"source": "CPE_FIELD",
"vendor_product": "fedoraproject:fedora"
}
]
}{
"cpe": "cpe:2.3:a:c-ares:c-ares:1.16.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.16.0"
}
],
"source": "CPE_FIELD"
}