The hesiodinit function in lib/hesiod.c in Hesiod 3.2.1 compares EUID with UID to determine whether to use configurations from environment variables, which allows local users to gain privileges via the (1) HESIODCONFIG or (2) HES_DOMAIN environment variable and leveraging certain SUID/SGUID binary.
{
"binaries": [
{
"binary_version": "3.2.1-3.1~build0.16.04.1",
"binary_name": "hesiod"
},
{
"binary_version": "3.2.1-3.1~build0.16.04.1",
"binary_name": "libhesiod-dev"
},
{
"binary_version": "3.2.1-3.1~build0.16.04.1",
"binary_name": "libhesiod0"
}
],
"availability": "No subscription required"
}
{
"binaries": [
{
"binary_version": "3.2.1-3.1~build0.18.04.1",
"binary_name": "hesiod"
},
{
"binary_version": "3.2.1-3.1~build0.18.04.1",
"binary_name": "libhesiod-dev"
},
{
"binary_version": "3.2.1-3.1~build0.18.04.1",
"binary_name": "libhesiod0"
}
],
"availability": "No subscription required"
}