RedHat: RHSA-2020-1403:01 Important: qemu-kvm security and bug fix update
Summary
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)
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2020-8608 https://access.redhat.com/security/updates/classification/#important
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/
Topic
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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
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
Bugs Fixed
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