A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.
{
"unresolved_ranges": [
{
"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:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "14.04"
},
{
"last_affected": "16.04"
},
{
"last_affected": "17.10"
}
],
"source": "CPE_FIELD",
"vendor_product": "canonical:ubuntu_linux"
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"last_affected": "7.0"
}
],
"source": "CPE_FIELD",
"vendor_product": "redhat:enterprise_linux"
}
]
}