An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/4xxx/CVE-2022-4144.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"last_affected": "affects versions up to latest v7.1.0"
}
],
"source": "AFFECTED_FIELD"
}
],
"cwe_ids": [
"CWE-125"
],
"cna_assigner": "redhat"
}{
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "7.1.0"
}
],
"source": "CPE_RANGE"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "7.1.0"
}
],
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}