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Red Hat Security Advisory 2020-3907-01

Red Hat Security Advisory 2020-3907-01
Posted Sep 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3907-01 - Kernel-based Virtual Machine 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. Issues addressed include a memory leak vulnerability.

tags | advisory, kernel, memory leak
systems | linux, redhat
advisories | CVE-2018-15746, CVE-2019-20382
SHA-256 | 2fc0326b0d731eb90d350ba8043da129eac010c786f7da0e5ac0dcb96fd08d74

Red Hat Security Advisory 2020-3907-01

Change Mirror Download
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====================================================================
Red Hat Security Advisory

Synopsis: Low: qemu-kvm-ma security update
Advisory ID: RHSA-2020:3907-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3907
Issue date: 2020-09-29
CVE Names: CVE-2018-15746 CVE-2019-20382
====================================================================
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 Low. 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

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: seccomp: blacklist is not applied to all threads (CVE-2018-15746)

* QEMU: vnc: memory leakage upon disconnect (CVE-2019-20382)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.9 Release Notes linked from 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/):

1615637 - CVE-2018-15746 QEMU: seccomp: blacklist is not applied to all threads
1810390 - CVE-2019-20382 QEMU: vnc: memory leakage upon disconnect

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
qemu-kvm-ma-2.12.0-48.el7.src.rpm

ppc64:
qemu-img-ma-2.12.0-48.el7.ppc64.rpm
qemu-kvm-ma-debuginfo-2.12.0-48.el7.ppc64.rpm

ppc64le:
qemu-img-ma-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-common-ma-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-ma-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-ma-debuginfo-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-tools-ma-2.12.0-48.el7.ppc64le.rpm

s390x:
qemu-img-ma-2.12.0-48.el7.s390x.rpm
qemu-kvm-common-ma-2.12.0-48.el7.s390x.rpm
qemu-kvm-ma-2.12.0-48.el7.s390x.rpm
qemu-kvm-ma-debuginfo-2.12.0-48.el7.s390x.rpm
qemu-kvm-tools-ma-2.12.0-48.el7.s390x.rpm

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

ppc64:
qemu-kvm-common-ma-2.12.0-48.el7.ppc64.rpm
qemu-kvm-ma-2.12.0-48.el7.ppc64.rpm
qemu-kvm-ma-debuginfo-2.12.0-48.el7.ppc64.rpm
qemu-kvm-tools-ma-2.12.0-48.el7.ppc64.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-2018-15746
https://access.redhat.com/security/cve/CVE-2019-20382
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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