- Issued:
- 2015-05-15
- Updated:
- 2015-05-15
RHSA-2015:1011 - Important: rhev-hypervisor security update
Synopsis
Important: rhev-hypervisor security update
Type/Severity
Security Advisory Important
Topic
Updated rhev-hypervisor packages that fix one security issue are now available.
Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Description
The rhev-hypervisor packages provide a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: a subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.
Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.
An out-of-bounds memory access flaw was found in the way QEMU's virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host's QEMU process corresponding to the guest. (CVE-2015-3456)
Red Hat would like to thank Jason Geffner of CrowdStrike for reporting this issue.
Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package.
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
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Virtualization | 7 | x86_64 |
| Red Hat Virtualization | 6 | x86_64 |
Updated Packages
- rhev-hypervisor7-7.1-20150512.1.el7ev.noarch.rpm
- rhev-hypervisor6-6.6-20150512.0.el6ev.noarch.rpm
- rhev-hypervisor6-6.6-20150512.0.el6ev.src.rpm
Fixes
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.