- Vulnerability/
- RHSA-2018:1675
RHSA-2018:1675: Important: vdsm security update
First published: Mon May 21 2018(Updated: )
The VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host's storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.<br>Security Fix(es):<br><li> An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)</li> Note: This is the VDSM side of the CVE-2018-3639 mitigation.<br>Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/vdsm | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-api | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-client | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-common | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-checkips | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-cpuflags | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-ethtool-options | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-extra-ipv4-addrs | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-fcoe | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-localdisk | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-macspoof | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-nestedvt | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-openstacknet | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-vfio-mdev | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-vhostmd | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-hook-vmfex-dev | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-http | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-jsonrpc | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-network | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-python | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
| redhat/vdsm-yajsonrpc | <4.20.27.2-1.el7e | 4.20.27.2-1.el7e |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2018:1675?
The severity of RHSA-2018:1675 is classified as important.
How do I fix RHSA-2018:1675?
To fix RHSA-2018:1675, update the affected vdsm packages to version 4.20.27.2-1.el7e.
Who is affected by RHSA-2018:1675?
RHSA-2018:1675 affects users of the VDSM service in Red Hat Enterprise Linux environments.
What vulnerability is addressed in RHSA-2018:1675?
RHSA-2018:1675 addresses security issues related to host management in virtualization using the VDSM service.
Is there a workaround for RHSA-2018:1675?
It is recommended to apply the provided updates to resolve the vulnerabilities in RHSA-2018:1675, as no specific workarounds are mentioned.
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