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Fedora 21: XSA-139, XSA-140 Critical Fixes for QEMU and Xen

fedora
Calendar Grey September 26, 2015
Dist Fedora Esm H88
Keep informed about new security patches for Xen in Fedora 21 that tackle urgent vulnerabilities.
libxl fails to honour readonly flag on disks with qemu-xen [XSA-142 (possible fix)] ---- update to xen-4.4.3, including Use after free in QEMU/Xen block unplug protocol [XSA-139, C...

Summary

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

Update Information:

libxl fails to honour readonly flag on disks with qemu-xen [XSA-142 (possible fix)] ---- update to xen-4.4.3, including Use after free in QEMU/Xen block unplug protocol [XSA-139, CVE-2015-5166], QEMU leak of uninitialized heap memory in rtl8139 device model [XSA-140, CVE-2015-5165]

Topics%20covered

Topics Covered

security advisory Fedora critical fix QEMU Xen heap leak block protocol

Change Log

References


[ 1 ] Bug #1248997 - CVE-2015-5166 Qemu: BlockBackend object use after free issue (XSA-139) https://bugzilla.redhat.com/show_bug.cgi?id=1248997 [ 2 ] Bug #1248760 - CVE-2015-5165 Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140) https://bugzilla.redhat.com/show_bug.cgi?id=1248760

Update Instructions

This update can be installed with the "yum" update program. Use su -c 'yum update xen' at the command line. For more information, refer to "Managing Software with yum", available at .

Severity
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Name: xen
Product: Fedora 21
Version: 4.4.3
Release: 3.fc21
URL: https://xenproject.org/
Summary: Xen is a virtual machine monitor

Topics%20covered

Topics Covered

security advisory Fedora critical fix QEMU Xen heap leak block protocol

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