-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2020-76cf2b0f0a 2020-07-23 01:17:08.656023 --------------------------------------------------------------------------------
Name : xen Product : Fedora 31 Version : 4.12.3 Release : 3.fc31 URL : http://xen.org/ Summary : Xen is a virtual machine monitor Description : This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor
-------------------------------------------------------------------------------- Update Information:
incorrect error handling in event channel port allocation leads to DoS [XSA-317, CVE-2020-15566] (#1854465) inverted code paths in x86 dirty VRAM tracking leads to DoS [XSA-319, CVE-2020-15563] (#1854463) xen: insufficient cache write-back under VT-d leads to DoS [XSA-321, CVE-2020-15565] (#1854467) missing alignment check in VCPUOP_register_vcpu_info leads to DoS [XSA-327, CVE-2020-15564] (#1854458) non-atomic modification of live EPT PTE leads to DoS [XSA-328, CVE-2020-15567] (#1854464) -------------------------------------------------------------------------------- ChangeLog:
* Tue Jul 7 2020 Michael Young m.a.young@durham.ac.uk - 4.12.3-3 - incorrect error handling in event channel port allocation leads to DoS [XSA-317, CVE-2020-15566] (#1854465) - inverted code paths in x86 dirty VRAM tracking leads to DoS [XSA-319, CVE-2020-15563] (#1854463) - xen: insufficient cache write-back under VT-d leads to DoS [XSA-321, CVE-2020-15565] (#1854467) - missing alignment check in VCPUOP_register_vcpu_info leads to DoS [XSA-327, CVE-2020-15564] (#1854458) - non-atomic modification of live EPT PTE leads to DoS [XSA-328, CVE-2020-15567] (#1854464) -------------------------------------------------------------------------------- References:
[ 1 ] Bug #1851470 - CVE-2020-15564 xen: missing alignment check in VCPUOP_register_vcpu_info leads to DoS (XSA-327) https://bugzilla.redhat.com/show_bug.cgi?id=1851470 [ 2 ] Bug #1851471 - CVE-2020-15563 xen: inverted code paths in x86 dirty VRAM tracking leads to DoS (XSA-319) https://bugzilla.redhat.com/show_bug.cgi?id=1851471 [ 3 ] Bug #1851472 - CVE-2020-15567 xen: non-atomic modification of live EPT PTE leads to DoS (XSA-328) https://bugzilla.redhat.com/show_bug.cgi?id=1851472 [ 4 ] Bug #1851474 - CVE-2020-15566 xen: incorrect error handling in event channel port allocation leads to DoS (XSA-317) https://bugzilla.redhat.com/show_bug.cgi?id=1851474 [ 5 ] Bug #1851475 - CVE-2020-15565 xen: insufficient cache write-back under VT-d leads to DoS (XSA-321) https://bugzilla.redhat.com/show_bug.cgi?id=1851475 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2020-76cf2b0f0a' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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