In the Linux kernel before 4.20.12, net/ipv4/netfilter/nfnatsnmpbasicmain.c in the SNMP NAT module has insufficient ASN.1 length checks (aka an array index error), making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmpversion and snmphelper.
{
"unresolved_ranges": [
{
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "18.04"
}
]
},
{
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "18.10"
}
]
},
{
"cpe": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"source": "CPE_FIELD",
"extracted_events": [
{
"introduced": "4.19"
},
{
"fixed": "4.19.25"
},
{
"introduced": "4.20"
},
{
"fixed": "4.20.12"
}
]
},
{
"source": "DESCRIPTION",
"extracted_events": [
{
"fixed": "4.20.12"
}
]
}
]
}