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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2022-42330)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the
    sibling thread after an SMT mode switch potentially resulting in information disclosure. (CVE-2022-27672)

  - 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. (CVE-2022-42330)

The remote host is affected by the vulnerability described in GLSA-202402-07 (Xen: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below     for details.

Tenable has extracted the preceding description block directly from the Gentoo Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
258189	Linux Distros Unpatched Vulnerability : CVE-2022-42330	Nessus	Misc.	high
424688	Alpine: multiple xen packages: security update to 4.17.0-r2	Tenable Cloud Security	Alpine Linux Local Security Checks	medium
424688	Alpine: multiple xen packages: security update to 4.17.0-r2	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	medium
189976	GLSA-202402-07 : Xen: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high

Detections

Analytics

CVE-2022-42330

high

Tenable Plugins

high

medium

medium

high