Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction
Metrics
Affected Vendors & Products
References
History
Tue, 06 May 2025 15:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|

Status: PUBLISHED
Assigner: XEN
Published: 2022-11-01T00:00:00.000Z
Updated: 2025-05-06T14:49:50.978Z
Reserved: 2022-10-03T00:00:00.000Z
Link: CVE-2022-42315

Updated: 2024-08-03T13:03:45.897Z

Status : Modified
Published: 2022-11-01T13:15:11.557
Modified: 2025-05-06T15:16:00.183
Link: CVE-2022-42315

No data.