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Patch  oval:com.redhat.rhsa:def:20191180
RHSA-2019:1180: libvirt security update (Important)  

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.
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.
Create Date: 2019-05-14 Last Update Date: 2019-05-14

Affected Platforms/Products

Affected Products (CPE + CVE references)
  • Fedoraproject  Fedora  
  • Redhat  Enterprise Linux  
  • cpe:/o:redhat:enterprise_linux:6::client
  • cpe:/o:redhat:enterprise_linux:6::computenode
  • cpe:/o:redhat:enterprise_linux:6::server
  • cpe:/o:redhat:enterprise_linux:6::workstation
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 6

References

Criteria

The patch should be installed
IF : Any one of the following are true
IF : Red Hat Enterprise Linux must be installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20070304026. Please see help for possible reasons
IF : All of the following are true
IF : Red Hat Enterprise Linux 6 is installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20111656003. Please see help for possible reasons
IF : Any one of the following are true
IF : All of the following are true
IF : libvirt-python is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhba:tst:20131581010. Please see help for possible reasons
IF : libvirt-python is earlier than 0:0.10.2-64.el6_10.1
WARNING! Unknown test oval:com.redhat.rhsa:tst:20191180009. Please see help for possible reasons
IF : All of the following are true
IF : libvirt-lock-sanlock is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhba:tst:20131581008. Please see help for possible reasons
IF : libvirt-lock-sanlock is earlier than 0:0.10.2-64.el6_10.1
WARNING! Unknown test oval:com.redhat.rhsa:tst:20191180007. Please see help for possible reasons
IF : All of the following are true
IF : libvirt-devel is earlier than 0:0.10.2-64.el6_10.1
WARNING! Unknown test oval:com.redhat.rhsa:tst:20191180005. Please see help for possible reasons
IF : libvirt-devel is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhba:tst:20131581006. Please see help for possible reasons
IF : All of the following are true
IF : libvirt-client is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhba:tst:20131581004. Please see help for possible reasons
IF : libvirt-client is earlier than 0:0.10.2-64.el6_10.1
WARNING! Unknown test oval:com.redhat.rhsa:tst:20191180003. Please see help for possible reasons
IF : All of the following are true
IF : libvirt is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhba:tst:20131581002. Please see help for possible reasons
IF : libvirt is earlier than 0:0.10.2-64.el6_10.1
WARNING! Unknown test oval:com.redhat.rhsa:tst:20191180001. Please see help for possible reasons

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