CVE-2022-42321: Debian Linux

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.

Affected products

• Debian Debian Linux: version 11.0 only
• Fedoraproject Fedora: version 35 only; version 36 only; version 37 only
• Xen Xen: affected versions not specified

Published 2022-11-01. Last modified 2026-06-17.