A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.
{
"unresolved_ranges": [
{
"cpe": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "33"
}
]
}
]
}{
"cpe": [
"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
],
"source": "CPE_FIELD",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "5.2.0"
},
{
"last_affected": "6.0"
},
{
"last_affected": "7.0"
},
{
"last_affected": "8.0"
},
{
"last_affected": "9.0"
},
{
"last_affected": "10.0"
}
]
}