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7.5
CVSSv3

CVE-2022-42330

Published: 26/01/2023 Updated: 06/02/2023
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
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Vulnerability Summary

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.

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xen xen 4.17.0

Vendor Advisories

Debian CVElist Bug Report Logs: xen: CVE-2022-42330
Debian Bug report logs - #1029830 xen: CVE-2022-42330 Package: src:xen; Maintainer for src:xen is Debian Xen Team <pkg-xen-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 28 Jan 2023 13:03:04 UTC Severity: important Tags: security, upstream Found in version xen/4170 ...

Github Repositories

CVE-2022-42330 Guests can cause Xenstore crash via soft reset When a guest issues a "Soft Reset" (eg 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 authentication complexity vector

References

NVD-CWE-noinfohttps://xenbits.xenproject.org/xsa/advisory-425.txthttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1029830https://github.com/Live-Hack-CVE/CVE-2022-42330https://nvd.nist.gov
CVSSv3
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