description: Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.
problem types: unknown
affected:
{
vendor: Xen
product: xen
versions:
version: consult Xen advisory XSA-416, status: unknown
}
metrics:
other: [
type: unknown
content: {'description': {'description_data': [{'lang': 'eng', 'value': 'A malicious guest can cause DoS of xenstored, resulting in the inability\nto create new guests or to change the configuration of already running\nguests.'}]}}
]