rhsa-2019_1883
Vulnerability from csaf_redhat
Published
2019-07-29 15:42
Modified
2024-11-15 08:25
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 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
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: slirp: heap buffer overflow in tcp_emu() (CVE-2019-6778) 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.
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-10:1.5.3-160.el7_6.3.x86_64",
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  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Kira"
          ],
          "organization": "Tencent Keen Security Lab"
        }
      ],
      "cve": "CVE-2019-6778",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "discovery_date": "2019-01-08T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1664205"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A heap buffer overflow issue was found in the SLiRP networking implementation of the QEMU emulator. It occurs in tcp_emu() routine while emulating the Identification protocol and copying message data to a socket buffer. A user or process could use this flaw to crash the QEMU process on the host resulting in a DoS or potentially executing arbitrary code with privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "QEMU: slirp: heap buffer overflow in tcp_emu()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat OpenStack Platform:                                                                                                                 \nThis flaw impacts KVM user-mode or SLIRP networking, which is not used in Red Hat OpenStack. Updating is recommended, however Red Hat OpenStack installs are not vulnerable to the described flaw due to the vulnerable feature not being used.",
          "title": "Statement"
        },
        {
          "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": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-6778"
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          "category": "external",
          "summary": "RHBZ#1664205",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1664205"
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-6778",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-6778"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-6778",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6778"
        }
      ],
      "release_date": "2019-01-11T00:00:00+00:00",
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          "category": "vendor_fix",
          "date": "2019-07-29T15:42:51+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.",
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            "attackVector": "LOCAL",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
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            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "QEMU: slirp: heap buffer overflow in tcp_emu()"
    }
  ]
}


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