7.5
Advisory Published
Updated

CVE-2022-42330

First published: Thu Jan 26 2023(Updated: )

Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.

Credit: security@xen.org security@xen.org

Affected SoftwareAffected VersionHow to fix
Xen Xen=4.17.0

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Frequently Asked Questions

  • What is the severity of CVE-2022-42330?

    The severity of CVE-2022-42330 is high.

  • How does CVE-2022-42330 affect Xen Xen version 4.17.0?

    CVE-2022-42330 affects Xen Xen version 4.17.0.

  • What can cause a Xenstore crash in CVE-2022-42330?

    A guest issuing a Soft Reset can cause a Xenstore crash in CVE-2022-42330.

  • What operation can result in a crash of xenstored in CVE-2022-42330?

    Performing XS_RELEASE operation can result in a crash of xenstored in CVE-2022-42330.

  • Is there a fix available for CVE-2022-42330?

    Please refer to the provided reference link for available fixes for CVE-2022-42330.

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