RedHat: RHSA-2019-2892:01 Important: qemu-kvm security 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: heap buffer overflow while reassembling fragmented datagrams
(CVE-2018-11806)
* QEMU: slirp: heap buffer overflow in tcp_emu() (CVE-2019-6778)
* QEMU: ne2000: integer overflow leads to buffer overflow issue
(CVE-2018-10839)
* QEMU: pcnet: integer overflow leads to buffer overflow (CVE-2018-17962)
* QEMU: qxl: null pointer dereference while releasing spice resources
(CVE-2019-12155)
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.
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-2018-10839 https://access.redhat.com/security/cve/CVE-2018-11806 https://access.redhat.com/security/cve/CVE-2018-17962 https://access.redhat.com/security/cve/CVE-2019-6778 https://access.redhat.com/security/cve/CVE-2019-12155 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_10.5.src.rpm
i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.i686.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.5.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.5.src.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.5.src.rpm
i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.i686.rpm
ppc64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.ppc64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.ppc64.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.5.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
qemu-kvm-0.12.1.2-2.506.el6_10.5.src.rpm
i386:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.i686.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.i686.rpm
x86_64:
qemu-guest-agent-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-img-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.506.el6_10.5.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.506.el6_10.5.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
1581013 - CVE-2018-10839 QEMU: ne2000: integer overflow leads to buffer overflow issue
1586245 - CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams
1636773 - CVE-2018-17962 QEMU: pcnet: integer overflow leads to buffer overflow
1664205 - CVE-2019-6778 QEMU: slirp: heap buffer overflow in tcp_emu()
1712670 - CVE-2019-12155 QEMU: qxl: null pointer dereference while releasing spice resources
