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A qemu-kvm security update has been released for Red Hat Enterprise Linux 6.



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Red Hat Security Advisory

Synopsis: Important: qemu-kvm security update
Advisory ID: RHSA-2020:0775-01
Product: Red Hat Enterprise Linux
Advisory URL:   https://access.redhat.com/errata/RHSA-2020:0775
Issue date: 2020-03-10
CVE Names: CVE-2019-14378 CVE-2019-15890 CVE-2020-7039
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1. Summary:

An update for qemu-kvm is now available for Red Hat Enterprise Linux 6.

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 Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

Kernel-based Virtual Machine (KVM) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm packages provide the
user-space component for running virtual machines that use KVM.

Security Fix(es):

* QEMU: slirp: heap buffer overflow during packet reassembly
(CVE-2019-14378)

* QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()
(CVE-2020-7039)

* QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)

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

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

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.

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

1734745 - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly
1749716 - CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly
1791551 - CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
qemu-kvm-0.12.1.2-2.506.el6_10.6.src.rpm

i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.i686.rpm

x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
qemu-kvm-0.12.1.2-2.506.el6_10.6.src.rpm

x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
qemu-kvm-0.12.1.2-2.506.el6_10.6.src.rpm

i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.i686.rpm

ppc64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.ppc64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.ppc64.rpm

x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
qemu-kvm-0.12.1.2-2.506.el6_10.6.src.rpm

i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.i686.rpm

x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.6.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.6.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-2019-14378
  https://access.redhat.com/security/cve/CVE-2019-15890
  https://access.redhat.com/security/cve/CVE-2020-7039
  https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2020 Red Hat, Inc.