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Gentoo Linux: CVE-2015-8551: Xen: Multiple vulnerabilities

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Gentoo Linux: CVE-2015-8551: Xen: Multiple vulnerabilities

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
04/13/2016
Created
07/25/2018
Added
10/30/2017
Modified
08/28/2020

Description

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

Solution(s)

  • gentoo-linux-upgrade-app-emulation-pvgrub
  • gentoo-linux-upgrade-app-emulation-xen
  • gentoo-linux-upgrade-app-emulation-xen-pvgrub
  • gentoo-linux-upgrade-app-emulation-xen-tools

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