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AUSCERT External Security Bulletin Redistribution
ESB-2020.1262
qemu-kvm security and bug fix update
9 April 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: qemu-kvm
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8608
Reference: ESB-2020.1249
ESB-2020.1247
ESB-2020.1191
ESB-2020.1169
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:1403
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Red Hat Security Advisory
Synopsis: Important: qemu-kvm security and bug fix update
Advisory ID: RHSA-2020:1403-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1403
Issue date: 2020-04-08
CVE Names: CVE-2020-8608
=====================================================================
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: potential OOB access due to unsafe snprintf() usages
(CVE-2020-8608)
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.
Bug Fix(es):
* QEMU: Slirp: disable emulation of tcp programs like ftp IRC etc. [rhel-6]
(BZ#1791680)
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/):
1791680 - QEMU: Slirp: disable emulation of tcp programs like ftp IRC etc. [rhel-6]
1798453 - CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.7.src.rpm
i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.i686.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.7.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.7.src.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.7.src.rpm
i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.i686.rpm
ppc64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.ppc64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.ppc64.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.7.src.rpm
i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.i686.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.7.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.7.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-2020-8608
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 2020 Red Hat, Inc.
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