CVE-2022-42321

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Nov 1, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2022

CVE-2022-423225.5Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple CVEs; the text explains CVE-2022-423235.5Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple CVEs; the text explains CVE-2022-423245.5Oxenstored 32->31 bit integer truncation issues Integers in Ocaml are 63 or 31 bits of signed precision. The Ocaml Xenbus library takes a C CVE-2022-423255.5Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explaCVE-2022-423265.5Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explaCVE-2022-423277.1x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and wriCVE-2022-423285.5Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vCVE-2022-423295.5Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vCVE-2022-42336.1A vulnerability has been found in SourceCodester Event Registration System 1.0 and classified as problematic. Affected by this vulnerabilityCVE-2022-423307.5Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstacCVE-2022-423315.5x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one CVE-2022-423327.8x86 shadow plus log-dirty mode use-after-free In environments where host assisted address translation is necessary but Hardware Assisted Pag
CVE-2022-42321: Medium severity, CVSS 6.5 | Vulnix