rhsa-2018_2404
Vulnerability from csaf_redhat
Published
2018-08-15 15:25
Modified
2024-11-15 02:12
Summary
Red Hat Security Advisory: rhev-hypervisor7 security update

Notes

Topic
An update for rhev-hypervisor7 is now available for RHEV 3.X Hypervisor and Agents for Red Hat Enterprise Linux 6 and 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.
Details
The rhev-hypervisor7 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Security Fix(es): * Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimisation) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. (CVE-2018-3620, CVE-2018-3646) Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting these issues.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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      ],
      "threats": [
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          "details": "Important"
        }
      ],
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            "6Server-RHEV-Hypervisor-ELS:rhev-hypervisor7-0:7.3-20180813.0.el6ev.noarch",
            "6Server-RHEV-Hypervisor-ELS:rhev-hypervisor7-0:7.3-20180813.0.el6ev.src",
            "7Server-RHEV-Hypervisor-ELS-7:rhev-hypervisor7-0:7.3-20180813.0.el7ev.noarch",
            "7Server-RHEV-Hypervisor-ELS-7:rhev-hypervisor7-0:7.3-20180813.0.el7ev.src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:2404"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "6Server-RHEV-Hypervisor-ELS:rhev-hypervisor7-0:7.3-20180813.0.el6ev.noarch",
            "6Server-RHEV-Hypervisor-ELS:rhev-hypervisor7-0:7.3-20180813.0.el6ev.src",
            "7Server-RHEV-Hypervisor-ELS-7:rhev-hypervisor7-0:7.3-20180813.0.el7ev.noarch",
            "7Server-RHEV-Hypervisor-ELS-7:rhev-hypervisor7-0:7.3-20180813.0.el7ev.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Kernel: hw: cpu: L1 terminal fault (L1TF)"
    }
  ]
}


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