rhsa-2018_1416
Vulnerability from csaf_redhat
Published
2018-05-14 14:45
Modified
2024-11-05 20:32
Summary
Red Hat Security Advisory: qemu-kvm security update

Notes

Topic
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es): * QEMU: cirrus: OOB access when updating VGA display (CVE-2018-7858) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Ross Lagerwall (Citrix.com) for reporting this issue.
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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        "product_reference": "qemu-kvm-tools-10:1.5.3-156.el7_5.1.x86_64",
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Ross Lagerwall"
          ],
          "organization": "Citrix.com"
        }
      ],
      "cve": "CVE-2018-7858",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2018-02-28T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1553402"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: cirrus: OOB access when updating VGA display",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "category": "external",
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-7858",
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      "release_date": "2018-03-08T00:00:00+00:00",
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          "date": "2018-05-14T14:45:15+00:00",
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "QEMU: cirrus: OOB access when updating VGA display"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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