Issued:
2018-01-05
Updated:
2018-01-05

RHSA-2018:0050 - Security Advisory

Synopsis

Important: vdsm security update

Type/Severity

Security Advisory: Important

Topic

An update for vdsm is now available for RHEV 4.X, RHEV-H, and Agents 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 instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5715 triggers the speculative execution by utilizing branch target injection. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory accesses may cause allocation 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 cross the syscall and guest/host boundaries and read privileged memory by conducting targeted cache side-channel attacks. (CVE-2017-5715)

Note: This is the vdsm side of the CVE-2017-5715 mitigation.

Red Hat would like to thank 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 4 for RHEL 7 x86_64
  • Red Hat Virtualization for IBM Power LE 4 for RHEL 7 ppc64le

Fixes

  • BZ - 1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection

CVEs

(none)

References

Red Hat Virtualization 4 for RHEL 7

SRPM
vdsm-4.19.43-3.el7ev.src.rpm SHA-256: b60ece878e2e6b0bcffbbab34c1d84131de844701ef82f339e7ccb024c57770e
x86_64
vdsm-4.19.43-3.el7ev.x86_64.rpm SHA-256: d5094c984b69a65b1907e2de96d3007283f0b73f1f70dc5a07c98f352912febe
vdsm-api-4.19.43-3.el7ev.noarch.rpm SHA-256: ec293bbfcfcc9772a57d293a0706662195d94e07314c3b9a0a546074d5104483
vdsm-cli-4.19.43-3.el7ev.noarch.rpm SHA-256: 79b2b5658e90c9daa2515969c08e3a87f625f0a589a018acf9be73651854dc0f
vdsm-client-4.19.43-3.el7ev.noarch.rpm SHA-256: 3c4fcf3a3d7441e120597c2a4ea22c609cee5cc18f73e9611b1add90b0e23a89
vdsm-gluster-4.19.43-3.el7ev.noarch.rpm SHA-256: 7da6084bcf280e9dca3a6061f1a9a787ff81ad19ac6721da3d9bd8fe9c52cac8
vdsm-hook-checkips-4.19.43-3.el7ev.x86_64.rpm SHA-256: 4513c9ae695c6244c86352367398e4fe54ec8541d1a1d4d7ed4767f31b649989
vdsm-hook-ethtool-options-4.19.43-3.el7ev.noarch.rpm SHA-256: f007d74757a037157d6d324a9e92006cbb1556330edae9ef1e0ea1e1f4535ff2
vdsm-hook-extra-ipv4-addrs-4.19.43-3.el7ev.x86_64.rpm SHA-256: 6e63dcb2845ae69b458a8aca6734dc03f3456a9fb3c491bc5d183d9984875bfd
vdsm-hook-fcoe-4.19.43-3.el7ev.noarch.rpm SHA-256: 991042233d745e59acd4efcbb7bc8482ee8aa725eb236d0a3b4ad0937e810844
vdsm-hook-localdisk-4.19.43-3.el7ev.noarch.rpm SHA-256: 9736ab4e80816bb28a29a0a33f9d5e4133e3461bcddad22ea89d1e696e614c78
vdsm-hook-macspoof-4.19.43-3.el7ev.noarch.rpm SHA-256: 6df8fdaedff7f02e76dca77043ce3c9435ba3c018130a643e7ec16ddab070b47
vdsm-hook-nestedvt-4.19.43-3.el7ev.noarch.rpm SHA-256: e0e7eb7aa9082993b39d1d20db68f38e99399a9aaa2bebdfe7ccfd8d33924d2b
vdsm-hook-openstacknet-4.19.43-3.el7ev.noarch.rpm SHA-256: 59167bf0fd11e56a02c967359024119491741861aee4f6e8f2470dcebfbe49fb
vdsm-hook-vfio-mdev-4.19.43-3.el7ev.noarch.rpm SHA-256: eb58387a7e3e48758418786e88b52f0bdea42b9b2038220236bc5c31f921f12c
vdsm-hook-vhostmd-4.19.43-3.el7ev.noarch.rpm SHA-256: 2a72d75a388e7bf88bb66f66c1423ccc6587c595e294629ad466e09e4a2621d7
vdsm-hook-vmfex-dev-4.19.43-3.el7ev.noarch.rpm SHA-256: 1189140f2b466fa14fb08b1567dd25c9ff049e5e9d2ef92078965155bbfcf29b
vdsm-jsonrpc-4.19.43-3.el7ev.noarch.rpm SHA-256: 0f089c5d6edd6a8aac508bbbf2fe5e2aec14ec7883fb0e2d5f09aee2d3ce7543
vdsm-python-4.19.43-3.el7ev.noarch.rpm SHA-256: 4b7d2ab52ee9e35a176316caa7437c131b78d2cce72b97cc0b214324b42eb3fd
vdsm-xmlrpc-4.19.43-3.el7ev.noarch.rpm SHA-256: 8900dbb9d29307f0fe8184e660e9d2db7239109fd85cbf16c1b646780c65d3ec
vdsm-yajsonrpc-4.19.43-3.el7ev.noarch.rpm SHA-256: 73760c02afc27152e4748a7163abf806b5deaf83689bb0244880ae3deb162735

Red Hat Virtualization for IBM Power LE 4 for RHEL 7

SRPM
vdsm-4.19.43-3.el7ev.src.rpm SHA-256: b60ece878e2e6b0bcffbbab34c1d84131de844701ef82f339e7ccb024c57770e
ppc64le
vdsm-4.19.43-3.el7ev.ppc64le.rpm SHA-256: d33b3a75e476f6df74da2305197d48242eb2e214436f4c6a27dd9b199568c518
vdsm-api-4.19.43-3.el7ev.noarch.rpm SHA-256: ec293bbfcfcc9772a57d293a0706662195d94e07314c3b9a0a546074d5104483
vdsm-cli-4.19.43-3.el7ev.noarch.rpm SHA-256: 79b2b5658e90c9daa2515969c08e3a87f625f0a589a018acf9be73651854dc0f
vdsm-client-4.19.43-3.el7ev.noarch.rpm SHA-256: 3c4fcf3a3d7441e120597c2a4ea22c609cee5cc18f73e9611b1add90b0e23a89
vdsm-hook-checkips-4.19.43-3.el7ev.ppc64le.rpm SHA-256: a22bbd0be83b5e48d445c342fb36cb40ed4c61d9390efa5d06e00af6f19264ac
vdsm-hook-ethtool-options-4.19.43-3.el7ev.noarch.rpm SHA-256: f007d74757a037157d6d324a9e92006cbb1556330edae9ef1e0ea1e1f4535ff2
vdsm-hook-extra-ipv4-addrs-4.19.43-3.el7ev.ppc64le.rpm SHA-256: 13aa3e66e46e6cc36b6829c9b5c5ddc69d183ece58c868acf5f823c5f98a0a8f
vdsm-hook-fcoe-4.19.43-3.el7ev.noarch.rpm SHA-256: 991042233d745e59acd4efcbb7bc8482ee8aa725eb236d0a3b4ad0937e810844
vdsm-hook-localdisk-4.19.43-3.el7ev.noarch.rpm SHA-256: 9736ab4e80816bb28a29a0a33f9d5e4133e3461bcddad22ea89d1e696e614c78
vdsm-hook-macspoof-4.19.43-3.el7ev.noarch.rpm SHA-256: 6df8fdaedff7f02e76dca77043ce3c9435ba3c018130a643e7ec16ddab070b47
vdsm-hook-nestedvt-4.19.43-3.el7ev.noarch.rpm SHA-256: e0e7eb7aa9082993b39d1d20db68f38e99399a9aaa2bebdfe7ccfd8d33924d2b
vdsm-hook-openstacknet-4.19.43-3.el7ev.noarch.rpm SHA-256: 59167bf0fd11e56a02c967359024119491741861aee4f6e8f2470dcebfbe49fb
vdsm-hook-vfio-mdev-4.19.43-3.el7ev.noarch.rpm SHA-256: eb58387a7e3e48758418786e88b52f0bdea42b9b2038220236bc5c31f921f12c
vdsm-hook-vhostmd-4.19.43-3.el7ev.noarch.rpm SHA-256: 2a72d75a388e7bf88bb66f66c1423ccc6587c595e294629ad466e09e4a2621d7
vdsm-hook-vmfex-dev-4.19.43-3.el7ev.noarch.rpm SHA-256: 1189140f2b466fa14fb08b1567dd25c9ff049e5e9d2ef92078965155bbfcf29b
vdsm-jsonrpc-4.19.43-3.el7ev.noarch.rpm SHA-256: 0f089c5d6edd6a8aac508bbbf2fe5e2aec14ec7883fb0e2d5f09aee2d3ce7543
vdsm-python-4.19.43-3.el7ev.noarch.rpm SHA-256: 4b7d2ab52ee9e35a176316caa7437c131b78d2cce72b97cc0b214324b42eb3fd
vdsm-xmlrpc-4.19.43-3.el7ev.noarch.rpm SHA-256: 8900dbb9d29307f0fe8184e660e9d2db7239109fd85cbf16c1b646780c65d3ec
vdsm-yajsonrpc-4.19.43-3.el7ev.noarch.rpm SHA-256: 73760c02afc27152e4748a7163abf806b5deaf83689bb0244880ae3deb162735

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