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Red Hat Product Errata RHSA-2018:1690 - Security Advisory
Issued:
2018-05-22
Updated:
2018-05-22

RHSA-2018:1690 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: vdsm security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for vdsm is now available for RHEV 3.X Hypervisor and Agents Extended Lifecycle Support for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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.

Security Fix(es):

  • 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)

Note: This is the VDSM side of the CVE-2018-3639 mitigation.

Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.

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

Affected Products

  • Red Hat Virtualization - ELS 3 x86_64

Fixes

  • BZ - 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass

CVEs

  • CVE-2018-3639

References

  • https://access.redhat.com/security/updates/classification/#important
  • https://access.redhat.com/security/vulnerabilities/ssbd
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization - ELS 3

SRPM
vdsm-4.17.45-1.el7ev.src.rpm SHA-256: 3a805d8307c8c583f0396432ed11747954c22a159465386943923df92fc30864
x86_64
vdsm-4.17.45-1.el7ev.noarch.rpm SHA-256: a910b0ddef00fbe4f48f3395fa6135b24234667385448ee1be740ad260d4ab2e
vdsm-cli-4.17.45-1.el7ev.noarch.rpm SHA-256: d6cd32ec35781e2cabe1e6bfe23567f8c3b9f18922634934ae3bfdc0e7aa0c02
vdsm-debug-plugin-4.17.45-1.el7ev.noarch.rpm SHA-256: af218ee4019e03e00998c571e24aae9f2b99909c52077a782567b15b2914ca23
vdsm-hook-ethtool-options-4.17.45-1.el7ev.noarch.rpm SHA-256: 5585e275b9ebdf0705266bd64df027dc91c0e8e2d325f61c3912f87546fef27a
vdsm-hook-fcoe-4.17.45-1.el7ev.noarch.rpm SHA-256: df1034d4aef179e7914d2b6c25f6b6ce2c234a4a2a64b1d5e34aafcbb6b605e8
vdsm-hook-macspoof-4.17.45-1.el7ev.noarch.rpm SHA-256: 123fd535c30a5c4b01fee1cb2bf60785ebe3400a5079c055af607770bc192698
vdsm-hook-openstacknet-4.17.45-1.el7ev.noarch.rpm SHA-256: 7f39e2c471deeaff4589b47d2dde83960d93431f4af45854d0629053877f3d1e
vdsm-hook-vhostmd-4.17.45-1.el7ev.noarch.rpm SHA-256: 751ceb47121dc076184cc8578f1b0e8aa420a48ef5fd28460c8337319d2ae794
vdsm-hook-vmfex-dev-4.17.45-1.el7ev.noarch.rpm SHA-256: ee5e782791b77c4cb80b8eb819efa734463571ce144a3da4c21a528485b65d85
vdsm-infra-4.17.45-1.el7ev.noarch.rpm SHA-256: 5b2bc3cf535633431d07069ece4e401859b82dbb204d73824ef3cb7ec2bcebc9
vdsm-jsonrpc-4.17.45-1.el7ev.noarch.rpm SHA-256: b8961ff10679391dc418c6d71b4dabb9907dea566bb41162ccfa2d846c453442
vdsm-python-4.17.45-1.el7ev.noarch.rpm SHA-256: 4216e7bb2a34b66eb60a63a505f26ce386adf52f838a982d6529291d91122a50
vdsm-xmlrpc-4.17.45-1.el7ev.noarch.rpm SHA-256: 4b1b63667482358cbb6bf3f20647746d5bf6b72e4587fac00f3640a070593ebf
vdsm-yajsonrpc-4.17.45-1.el7ev.noarch.rpm SHA-256: 78263731e5a9a7afc52c4797483984d327416ac2f791827f37a2f5f7b5272272

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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