ESB-2018.2896 - [UNIX/Linux][RedHat] qemu-kvm-ma: Execute arbitrary code/commands - Existing account 2018-09-26

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2896
                  Important: qemu-kvm-ma security update
                             26 September 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           qemu-kvm-ma
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-11806  

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2018:2762

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Red Hat. It is recommended that administrators
         running qemu-kvm-ma check for an updated version of the software for
         their operating system.

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

Synopsis:          Important: qemu-kvm-ma security update
Advisory ID:       RHSA-2018:2762-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:2762
Issue date:        2018-09-25
CVE Names:         CVE-2018-11806 
=====================================================================

1. Summary:

An update for qemu-kvm-ma is now available for Red Hat Enterprise Linux 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 Server (v. 7) - ppc64, ppc64le, s390x
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64

3. Description:

Kernel-based Virtual Machine (KVM) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm-ma packages provide the
user-space component for running virtual machines that use KVM on the IBM z
Systems, IBM Power, and 64-bit ARM architectures.

Security Fix(es):

* QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams
(CVE-2018-11806)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

Red Hat would like to thank Jskz - Zero Day Initiative (trendmicro.com) 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/):

1586245 - CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
qemu-kvm-ma-2.10.0-21.el7_5.4.src.rpm

ppc64:
qemu-img-ma-2.10.0-21.el7_5.4.ppc64.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.ppc64.rpm

ppc64le:
qemu-img-ma-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-common-ma-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-ma-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-tools-ma-2.10.0-21.el7_5.4.ppc64le.rpm

s390x:
qemu-img-ma-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-common-ma-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-ma-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-tools-ma-2.10.0-21.el7_5.4.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
qemu-kvm-ma-2.10.0-21.el7_5.4.src.rpm

ppc64le:
qemu-img-ma-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-common-ma-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-ma-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-tools-ma-2.10.0-21.el7_5.4.ppc64le.rpm

s390x:
qemu-img-ma-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-common-ma-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-ma-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.s390x.rpm
qemu-kvm-tools-ma-2.10.0-21.el7_5.4.s390x.rpm

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

ppc64:
qemu-kvm-common-ma-2.10.0-21.el7_5.4.ppc64.rpm
qemu-kvm-ma-2.10.0-21.el7_5.4.ppc64.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.ppc64.rpm
qemu-kvm-tools-ma-2.10.0-21.el7_5.4.ppc64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

Source:
qemu-kvm-ma-2.10.0-21.el7_5.4.src.rpm

aarch64:
qemu-img-ma-2.10.0-21.el7_5.4.aarch64.rpm
qemu-kvm-common-ma-2.10.0-21.el7_5.4.aarch64.rpm
qemu-kvm-ma-2.10.0-21.el7_5.4.aarch64.rpm
qemu-kvm-ma-debuginfo-2.10.0-21.el7_5.4.aarch64.rpm
qemu-kvm-tools-ma-2.10.0-21.el7_5.4.aarch64.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-2018-11806
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 2018 Red Hat, Inc.
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