Red Hat: 2015:1772-01: qemu-kvm-rhev: Important Advisory
Summary
KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the
user-space component for running virtual machines using KVM.
A heap-based buffer overflow issue was found in the QEMU emulator's VNC
display driver. It could occur while refreshing the VNC server's display
surface using the vnc_refresh_server_surface() routine. A privileged guest
user could use this flaw to corrupt the heap memory and crash the QEMU
process instance, or to potentially use it to execute arbitrary code on the
host. (CVE-2015-5225)
Red Hat would like to thank Mr Qinghao Tang from QIHU 360 Inc. and Mr
Zuozhi from Alibaba Inc. for reporting this issue.
All qemu-kvm-rhev users are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. After installing
this update, shut down all running virtual machines. After all virtual
machines have shut down, start them again for this update to take effect.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2015-5225 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:
Source:
qemu-kvm-rhev-2.1.2-23.el7_1.9.src.rpm
x86_64:
libcacard-devel-rhev-2.1.2-23.el7_1.9.x86_64.rpm
libcacard-rhev-2.1.2-23.el7_1.9.x86_64.rpm
libcacard-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-img-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-common-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm
Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7:
Source:
qemu-kvm-rhev-2.1.2-23.el7_1.9.src.rpm
x86_64:
libcacard-devel-rhev-2.1.2-23.el7_1.9.x86_64.rpm
libcacard-rhev-2.1.2-23.el7_1.9.x86_64.rpm
libcacard-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-img-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-common-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm
Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7:
Source:
qemu-kvm-rhev-2.1.2-23.el7_1.9.src.rpm
x86_64:
libcacard-rhev-2.1.2-23.el7_1.9.x86_64.rpm
libcacard-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-img-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-common-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-rhev-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.9.x86_64.rpm
qemu-kvm-tools-rhev-2.1.2-23.el7_1.9.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
Updated qemu-kvm-rhev packages that fix one security issue are nowavailable for Red Hat Enterprise Linux OpenStack Platform 5.0, 6.0 and 7.0,for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - x86_64
Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7 - x86_64
Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7 - x86_64
Bugs Fixed
1255896 - CVE-2015-5225 Qemu: ui: vnc: heap memory corruption in vnc_refresh_server_surface