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[RHSA-2015:1793-01] Moderate: qemu-kvm security fix update



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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: qemu-kvm security fix update
Advisory ID:       RHSA-2015:1793-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-1793.html
Issue date:        2015-09-15
CVE Names:         CVE-2015-5165 
=====================================================================

1. Summary:

Updated qemu-kvm packages that fix one security issue are now available for
Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the
user-space component for running virtual machines using KVM.

An information leak flaw was found in the way QEMU's RTL8139 emulation
implementation processed network packets under RTL8139 controller's C+ mode
of operation. An unprivileged guest user could use this flaw to read up to
65 KB of uninitialized QEMU heap memory. (CVE-2015-5165)

Red Hat would like to thank the Xen project for reporting this issue.
Upstream acknowledges Donghai Zhu of Alibaba as the original reporter.

All qemu-kvm users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, shut down all running virtual machines. Once all virtual machines
have shut down, start them again for this update to take effect.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1248760 - CVE-2015-5165 Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140)

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
qemu-kvm-1.5.3-86.el7_1.6.src.rpm

x86_64:
libcacard-1.5.3-86.el7_1.6.i686.rpm
libcacard-1.5.3-86.el7_1.6.x86_64.rpm
qemu-img-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.6.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
libcacard-devel-1.5.3-86.el7_1.6.i686.rpm
libcacard-devel-1.5.3-86.el7_1.6.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Source:
qemu-kvm-1.5.3-86.el7_1.6.src.rpm

x86_64:
libcacard-1.5.3-86.el7_1.6.i686.rpm
libcacard-1.5.3-86.el7_1.6.x86_64.rpm
libcacard-devel-1.5.3-86.el7_1.6.i686.rpm
libcacard-devel-1.5.3-86.el7_1.6.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.6.x86_64.rpm
qemu-img-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
qemu-kvm-1.5.3-86.el7_1.6.src.rpm

ppc64:
qemu-img-1.5.3-86.el7_1.6.ppc64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.ppc64.rpm

x86_64:
libcacard-1.5.3-86.el7_1.6.i686.rpm
libcacard-1.5.3-86.el7_1.6.x86_64.rpm
qemu-img-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
libcacard-1.5.3-86.el7_1.6.ppc.rpm
libcacard-1.5.3-86.el7_1.6.ppc64.rpm
libcacard-devel-1.5.3-86.el7_1.6.ppc.rpm
libcacard-devel-1.5.3-86.el7_1.6.ppc64.rpm
libcacard-tools-1.5.3-86.el7_1.6.ppc64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.ppc.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.ppc64.rpm

x86_64:
libcacard-devel-1.5.3-86.el7_1.6.i686.rpm
libcacard-devel-1.5.3-86.el7_1.6.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
qemu-kvm-1.5.3-86.el7_1.6.src.rpm

x86_64:
libcacard-1.5.3-86.el7_1.6.i686.rpm
libcacard-1.5.3-86.el7_1.6.x86_64.rpm
qemu-img-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
libcacard-devel-1.5.3-86.el7_1.6.i686.rpm
libcacard-devel-1.5.3-86.el7_1.6.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.6.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2015-5165
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert redhat com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2015 Red Hat, Inc.
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