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Sicherheit: Ausführen beliebiger Kommandos in QEMU
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in QEMU
ID: RHSA-2016:1001-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux OpenStack Platform
Datum: Di, 10. Mai 2016, 09:34
Referenzen: https://access.redhat.com/security/cve/CVE-2016-3710

Originalnachricht

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

Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2016:1001-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1001.html
Issue date: 2016-05-10
CVE Names: CVE-2016-3710
=====================================================================

1. Summary:

An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux
OpenStack Platform 7.0 (Kilo) for RHEL 7.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 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-rhev package provides the
user-space component for running virtual machines using KVM in environments
managed by Red Hat Enterprise Virtualization Manager.

Security Fix:

* An out-of-bounds read/write access flaw was found in the way QEMU's VGA
emulation with VESA BIOS Extensions (VBE) support performed read/write
operations using I/O port methods. A privileged guest user could use
this flaw to execute arbitrary code on the host with the privileges of the
host's QEMU process. (CVE-2016-3710)

Red Hat would like to thank Wei Xiao (360 Marvel Team) and Qinghao Tang
(360 Marvel Team) for reporting this issue.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

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

1331401 - CVE-2016-3710 qemu: incorrect banked access bounds checking in vga
module

6. Package List:

Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7:

Source:
qemu-kvm-rhev-2.3.0-31.el7_2.13.src.rpm

x86_64:
libcacard-rhev-2.3.0-31.el7_2.13.x86_64.rpm
libcacard-tools-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-img-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-common-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-tools-rhev-2.3.0-31.el7_2.13.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-2016-3710
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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