The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.
{
"unresolved_ranges": [
{
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"last_affected": "14.04"
},
{
"last_affected": "16.04"
},
{
"last_affected": "17.10"
}
],
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
],
"source": "CPE_STRING"
},
{
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"last_affected": "9.0"
}
],
"cpes": [
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"source": "CPE_STRING"
},
{
"vendor_product": "redhat:virtualization",
"extracted_events": [
{
"last_affected": "4.0"
}
],
"cpes": [
"cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*"
],
"source": "CPE_STRING"
}
]
}