CVE-2022-42321 Information

Description

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.

Reference

https://xenbits.xenproject.org/xsa/advisory-418.txt http://xenbits.xen.org/xsa/advisory-418.html http://www.openwall.com/lists/oss-security/2022/11/01/8