An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati2dblt() routine in hw/display/ati2d.c while handling MMIO write operations through the atimm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "4.2.1"
},
{
"introduced": "0"
},
{
"last_affected": "5.0.0-rc0"
},
{
"introduced": "0"
},
{
"last_affected": "5.0.0-rc1"
}
]
}