hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.
{
"unresolved_ranges": [
{
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"last_affected": "16.04"
},
{
"last_affected": "18.04"
},
{
"last_affected": "20.04"
}
],
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"source": "CPE_STRING"
},
{
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"last_affected": "10.0"
}
],
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
],
"source": "CPE_STRING"
}
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "5.0.0"
},
{
"last_affected": "5.1.0-rc0"
}
],
"cpe": [
"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:5.1.0:rc0:*:*:*:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "5.0.0"
},
{
"last_affected": "5.1.0-rc0"
}
],
"cpe": [
"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"cpe:2.3:a:qemu:qemu:5.1.0:rc0:*:*:*:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}