A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtionetflushtx function if guest features VIRTIONETFHASHREPORT, VIRTIOFVERSION1 and VIRTIONETFMRGRXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the out_sg variable could be used to read a part of process memory and send it to the wire, causing an information leak.
{
"cwe_ids": [
"CWE-121"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6693.json",
"cna_assigner": "redhat"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "8.2.1"
}
],
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}
{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "8.2.1"
}
],
"cpe": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}