Synopsis

Important: vdsm security update

Type/Severity

Security Advisory: Important

Topic

An update for vdsm is now available for Red Hat Virtualization 4 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):

• A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
  
• Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
  
• Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
  
• Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
  

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/2974891

Affected Products

• Red Hat Virtualization 4 x86_64
• Red Hat Virtualization for IBM Power LE 4 ppc64le

Fixes

• BZ - 1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
• BZ - 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• BZ - 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
• BZ - 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

CVEs

• CVE-2018-12126
• CVE-2018-12127
• CVE-2018-12130
• CVE-2019-11091

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/security/vulnerabilities/mds

Red Hat Virtualization 4

SRPM
vdsm-4.30.13-4.el7ev.src.rpm	SHA-256: b24ee187de525476a0158c988816102366ce8c6ab1838cd62b54714bd32b9831
x86_64
vdsm-4.30.13-4.el7ev.x86_64.rpm	SHA-256: c4f4f8c0196bb7642a2c4ac303b387450ef30b80aaa7fff28c4b4c84b3d95eb4
vdsm-api-4.30.13-4.el7ev.noarch.rpm	SHA-256: 2379c377fc9d2d3a515bbe6df0b080521baf5b85c185a42f6fc027f753989b88
vdsm-client-4.30.13-4.el7ev.noarch.rpm	SHA-256: a461075ccc2d06a3b2db5cd2139e10c2bb0adf8ff9527eb84714fdc7bee2f3b0
vdsm-common-4.30.13-4.el7ev.noarch.rpm	SHA-256: 1143d7d89927b25e5a41c90b140b4e1737885a5115e8c4e55d29ee9a071cf14a
vdsm-gluster-4.30.13-4.el7ev.x86_64.rpm	SHA-256: 30c86b83b9863cd063b624eba288d46e6c3bd0049de0668857f622bcc42fe3cb
vdsm-hook-checkips-4.30.13-4.el7ev.x86_64.rpm	SHA-256: 5f3d47e103bc323ec8089ff4a6d9bd169446bac48b309bca8899d92c90e00291
vdsm-hook-cpuflags-4.30.13-4.el7ev.noarch.rpm	SHA-256: e7c372acc4f0d47e8408d70f7352de289a099cf9d5b5f0973070fb9dd906a67f
vdsm-hook-ethtool-options-4.30.13-4.el7ev.noarch.rpm	SHA-256: 1b129a239c8f135d77cf88499ba11f1f456e7fa5b0519e5d1bd4adb9b9727aa0
vdsm-hook-extra-ipv4-addrs-4.30.13-4.el7ev.x86_64.rpm	SHA-256: b50c643030b191791fdfc01141613abb1a47b2877de25ad4b98bf5eb59a913bc
vdsm-hook-fcoe-4.30.13-4.el7ev.noarch.rpm	SHA-256: aacf79e7e64a403b393c4b67d070a760958a108868fbb52e013f6cb77c5a77da
vdsm-hook-localdisk-4.30.13-4.el7ev.noarch.rpm	SHA-256: f8db1a565b5ede5a1c3539ff849eb40282c1b898e3f9a042bdab64dcb315d135
vdsm-hook-macspoof-4.30.13-4.el7ev.noarch.rpm	SHA-256: 0f532060b9df961f228f7c2c22de67f3a9d9739cd4a4c01fafcf10218440d391
vdsm-hook-nestedvt-4.30.13-4.el7ev.noarch.rpm	SHA-256: f83937dea16c218dbb24d0d2d5418bd26328ce265712c57067b4ab9f3a0acb94
vdsm-hook-openstacknet-4.30.13-4.el7ev.noarch.rpm	SHA-256: 7853cdb69fef6cc0c64644f9c0f62a4115191c6e1590b5fa6a205f33ba2b109d
vdsm-hook-vhostmd-4.30.13-4.el7ev.noarch.rpm	SHA-256: 2f1e68dacfd21ad48f30541c1d4feead28ea9e7fa1ef312a9cdf97f7f91fcbd5
vdsm-hook-vmfex-dev-4.30.13-4.el7ev.noarch.rpm	SHA-256: 43c0109f1b52874f6d91a795345f9b2e60db8f5f68a1cb20736734bb59a692bd
vdsm-http-4.30.13-4.el7ev.noarch.rpm	SHA-256: 92da49723ab40b30d017c80a1e1c8cdd5988f2d75b0b83b5a6d470bb7662fbda
vdsm-jsonrpc-4.30.13-4.el7ev.noarch.rpm	SHA-256: b30328b959be7143ad1d462ab5c0597f012b26b7f09de63e52b2d928f5294f5e
vdsm-network-4.30.13-4.el7ev.x86_64.rpm	SHA-256: 0ad9a3ec1d83d7d76e1e9a268af73f00c1f460222f42d8c70870ff00e820cf90
vdsm-python-4.30.13-4.el7ev.noarch.rpm	SHA-256: 9481d45e6b13f7b3d64ee5a6f8576f4455fd92bda87b90953feb4a9c3b421411
vdsm-yajsonrpc-4.30.13-4.el7ev.noarch.rpm	SHA-256: bdf93223a27550e9d05f9317f994b9c4f23bb1f29d37a0829c0be186c596890e

Red Hat Virtualization for IBM Power LE 4

SRPM
vdsm-4.30.13-4.el7ev.src.rpm	SHA-256: b24ee187de525476a0158c988816102366ce8c6ab1838cd62b54714bd32b9831
ppc64le
vdsm-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 91b636e4f20343c89349019730f3e3ff3ea565a4b7c3e0a7dfd83e7b3fabf8dd
vdsm-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 91b636e4f20343c89349019730f3e3ff3ea565a4b7c3e0a7dfd83e7b3fabf8dd
vdsm-api-4.30.13-4.el7ev.noarch.rpm	SHA-256: 2379c377fc9d2d3a515bbe6df0b080521baf5b85c185a42f6fc027f753989b88
vdsm-api-4.30.13-4.el7ev.noarch.rpm	SHA-256: 2379c377fc9d2d3a515bbe6df0b080521baf5b85c185a42f6fc027f753989b88
vdsm-client-4.30.13-4.el7ev.noarch.rpm	SHA-256: a461075ccc2d06a3b2db5cd2139e10c2bb0adf8ff9527eb84714fdc7bee2f3b0
vdsm-client-4.30.13-4.el7ev.noarch.rpm	SHA-256: a461075ccc2d06a3b2db5cd2139e10c2bb0adf8ff9527eb84714fdc7bee2f3b0
vdsm-common-4.30.13-4.el7ev.noarch.rpm	SHA-256: 1143d7d89927b25e5a41c90b140b4e1737885a5115e8c4e55d29ee9a071cf14a
vdsm-common-4.30.13-4.el7ev.noarch.rpm	SHA-256: 1143d7d89927b25e5a41c90b140b4e1737885a5115e8c4e55d29ee9a071cf14a
vdsm-gluster-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 4b074006869f1503db0caf7ca2d37574c3f7b400823047c5bab8e3bcbead1491
vdsm-gluster-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 4b074006869f1503db0caf7ca2d37574c3f7b400823047c5bab8e3bcbead1491
vdsm-hook-checkips-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: fd8bca32d1444ae6b7427a126acf73a85921bf84cab140c4a59079b7f311d579
vdsm-hook-checkips-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: fd8bca32d1444ae6b7427a126acf73a85921bf84cab140c4a59079b7f311d579
vdsm-hook-cpuflags-4.30.13-4.el7ev.noarch.rpm	SHA-256: e7c372acc4f0d47e8408d70f7352de289a099cf9d5b5f0973070fb9dd906a67f
vdsm-hook-cpuflags-4.30.13-4.el7ev.noarch.rpm	SHA-256: e7c372acc4f0d47e8408d70f7352de289a099cf9d5b5f0973070fb9dd906a67f
vdsm-hook-ethtool-options-4.30.13-4.el7ev.noarch.rpm	SHA-256: 1b129a239c8f135d77cf88499ba11f1f456e7fa5b0519e5d1bd4adb9b9727aa0
vdsm-hook-ethtool-options-4.30.13-4.el7ev.noarch.rpm	SHA-256: 1b129a239c8f135d77cf88499ba11f1f456e7fa5b0519e5d1bd4adb9b9727aa0
vdsm-hook-extra-ipv4-addrs-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 50651fd9f93b3314fd673e79d68ae7594dc45949194e2334c27ac9daaf3b6f40
vdsm-hook-extra-ipv4-addrs-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 50651fd9f93b3314fd673e79d68ae7594dc45949194e2334c27ac9daaf3b6f40
vdsm-hook-fcoe-4.30.13-4.el7ev.noarch.rpm	SHA-256: aacf79e7e64a403b393c4b67d070a760958a108868fbb52e013f6cb77c5a77da
vdsm-hook-fcoe-4.30.13-4.el7ev.noarch.rpm	SHA-256: aacf79e7e64a403b393c4b67d070a760958a108868fbb52e013f6cb77c5a77da
vdsm-hook-localdisk-4.30.13-4.el7ev.noarch.rpm	SHA-256: f8db1a565b5ede5a1c3539ff849eb40282c1b898e3f9a042bdab64dcb315d135
vdsm-hook-localdisk-4.30.13-4.el7ev.noarch.rpm	SHA-256: f8db1a565b5ede5a1c3539ff849eb40282c1b898e3f9a042bdab64dcb315d135
vdsm-hook-macspoof-4.30.13-4.el7ev.noarch.rpm	SHA-256: 0f532060b9df961f228f7c2c22de67f3a9d9739cd4a4c01fafcf10218440d391
vdsm-hook-macspoof-4.30.13-4.el7ev.noarch.rpm	SHA-256: 0f532060b9df961f228f7c2c22de67f3a9d9739cd4a4c01fafcf10218440d391
vdsm-hook-nestedvt-4.30.13-4.el7ev.noarch.rpm	SHA-256: f83937dea16c218dbb24d0d2d5418bd26328ce265712c57067b4ab9f3a0acb94
vdsm-hook-nestedvt-4.30.13-4.el7ev.noarch.rpm	SHA-256: f83937dea16c218dbb24d0d2d5418bd26328ce265712c57067b4ab9f3a0acb94
vdsm-hook-openstacknet-4.30.13-4.el7ev.noarch.rpm	SHA-256: 7853cdb69fef6cc0c64644f9c0f62a4115191c6e1590b5fa6a205f33ba2b109d
vdsm-hook-openstacknet-4.30.13-4.el7ev.noarch.rpm	SHA-256: 7853cdb69fef6cc0c64644f9c0f62a4115191c6e1590b5fa6a205f33ba2b109d
vdsm-hook-vhostmd-4.30.13-4.el7ev.noarch.rpm	SHA-256: 2f1e68dacfd21ad48f30541c1d4feead28ea9e7fa1ef312a9cdf97f7f91fcbd5
vdsm-hook-vhostmd-4.30.13-4.el7ev.noarch.rpm	SHA-256: 2f1e68dacfd21ad48f30541c1d4feead28ea9e7fa1ef312a9cdf97f7f91fcbd5
vdsm-hook-vmfex-dev-4.30.13-4.el7ev.noarch.rpm	SHA-256: 43c0109f1b52874f6d91a795345f9b2e60db8f5f68a1cb20736734bb59a692bd
vdsm-hook-vmfex-dev-4.30.13-4.el7ev.noarch.rpm	SHA-256: 43c0109f1b52874f6d91a795345f9b2e60db8f5f68a1cb20736734bb59a692bd
vdsm-http-4.30.13-4.el7ev.noarch.rpm	SHA-256: 92da49723ab40b30d017c80a1e1c8cdd5988f2d75b0b83b5a6d470bb7662fbda
vdsm-http-4.30.13-4.el7ev.noarch.rpm	SHA-256: 92da49723ab40b30d017c80a1e1c8cdd5988f2d75b0b83b5a6d470bb7662fbda
vdsm-jsonrpc-4.30.13-4.el7ev.noarch.rpm	SHA-256: b30328b959be7143ad1d462ab5c0597f012b26b7f09de63e52b2d928f5294f5e
vdsm-jsonrpc-4.30.13-4.el7ev.noarch.rpm	SHA-256: b30328b959be7143ad1d462ab5c0597f012b26b7f09de63e52b2d928f5294f5e
vdsm-network-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 117bff1c0f22f1bc1cc0c0f8ff70c96c537ac80096b997983e9b87ea4edffbd7
vdsm-network-4.30.13-4.el7ev.ppc64le.rpm	SHA-256: 117bff1c0f22f1bc1cc0c0f8ff70c96c537ac80096b997983e9b87ea4edffbd7
vdsm-python-4.30.13-4.el7ev.noarch.rpm	SHA-256: 9481d45e6b13f7b3d64ee5a6f8576f4455fd92bda87b90953feb4a9c3b421411
vdsm-python-4.30.13-4.el7ev.noarch.rpm	SHA-256: 9481d45e6b13f7b3d64ee5a6f8576f4455fd92bda87b90953feb4a9c3b421411
vdsm-yajsonrpc-4.30.13-4.el7ev.noarch.rpm	SHA-256: bdf93223a27550e9d05f9317f994b9c4f23bb1f29d37a0829c0be186c596890e
vdsm-yajsonrpc-4.30.13-4.el7ev.noarch.rpm	SHA-256: bdf93223a27550e9d05f9317f994b9c4f23bb1f29d37a0829c0be186c596890e